DSM-6? Do not Get Your Hopes up…..


 

I simply spent some time studying all of the papers within the American
Journal of Psychiatry
in regards to the future DSM (1-5).  As you may anticipate many individuals have many
issues to say and that’s as true inside as exterior the sphere.  We’re on the cusp of one other epoch of DSM
articles within the widespread press that can predictably range from insufficient to
horrific. These articles will declare that the DSM is revealed as a supply of
income for the American Psychiatric Affiliation (APA), as a approach for
pharmaceutical firms to generate income, and as a “Bible” for
psychiatrists.  There shall be
philosophical musings tangentially associated to the sphere however extraordinarily essential.  There would be the regular antipsychiatry
screeds about how it’s unscientific, how there are higher methods on the market,
and the way the diagnoses are mere labels that imply nothing. Most of these opinions
shall be written by individuals who have by no means practiced psychiatry or been handled
for a psychological sickness.  It appears that evidently simply
about anyone believes that they’re an skilled in psychiatry.

For these of us acquainted with the sphere – our backgrounds
are extra uniform. A major variety of individuals are like me – undergrad
science majors who’re at all times all in favour of organic science and drugs. We
practiced in acute care settings and noticed individuals with vital medical
comorbidity.  We made loads of medical
and neurological diagnoses that no one else made and have been a useful resource for that
form of referral.  We knew early on that
lots of the diagnoses listed within the DSM have been questionable and we by no means used
them. It seems we’re the final individuals the DSM is designed for and after
reviewing latest opinion items I’ll let you know why and the way it may be
corrected.

The lead paper by Oquendo, et al (1) briefly critiques frequent
cited issues with the DSM and attainable treatments.  The primary criticism is that it’s
atheoretical. That’s much less of an issue than described.  Any reader of the DSM sees instantly that
regardless of the acknowledged atheoretical stance there are clear acknowledged etiologies for
DSM listed diagnoses. To maintain it easy, I refer any reader to the desk Diagnoses
related to substance class
(p. 482). 
That desk accommodates 127 diagnoses related to particular substances.  There are equally many diagnoses that
establish a psychosocial issue as being concerned within the etiology.  Classes versus spectrums are listed as
downside 2, regardless of the actual fact there most likely aren’t any spectrums (from the genetic
aspect) and all polygenic medical circumstances (hypertension and diabetes mellitus
for instance) have the identical limitations. There are 4 further uninteresting
factors and proposed options.  One in every of
the subcommittees is targeted on the Dahlgren-Whitehead framework for social
determinants of well being.  On the identical time
one other committee is devices to guarantee a extra complete sociocultural
evaluation.  It made me ponder whether
anybody on the committee had ever learn a present complete psychiatric
evaluation.  Each psychiatrist ought to
have considerations about extra checklists.

The second paper by Cuthbert, et al (2) was about biomarkers
and organic components. The dialogue was lengthy on biomarkers and quick on
biology.  To neuropsychiatrists this
part of the DSM has at all times been a disappointment. For example, the part
with essentially the most biology – neurocognitive problems has surprisingly little
dialogue of related medical options (like a gross characterization of EEG
in delirium) or a dialogue of neuropathology with none further
dialogue of what that appears like clinically.  
The Oquendo committee (1) has proposed altering the title of the DSM to
the Diagnostic and Scientific Guide as a result of it’s now not used to
accumulate statistics.  If that happens, they
have to put much more science into it, and that is the realm for it. 

I’ve proposed a separate DSM for psychiatrists prior to now
however a separate quantity on the present science of psychiatry could be as helpful.
I’m speaking about greater than only a overview of unproven analysis, however how the science-based
psychiatrist interprets what we all know to date into medical observe.  I might begin with a rewrite of the part
on Neurocognitive Problems and all of the essential variations earlier than worrying
about plasma biomarkers and whether or not they’re FDA accredited. There are volumes
written on this topic which were misplaced on the DSM.  To quote just a few examples – ought to a
psychiatrist be capable of acknowledge displays of encephalitis, meningitis,
and the varied displays of vascular dementia from their very own evaluation
and out there imaging and lab research?  Ought to
a psychiatrist be capable of diagnose varied types of aphasia and do the
indicated analysis? In fact, they need to – and it’s all a part of the rule
out standards for psychiatric problems. It’s not sufficient to depart the drugs
and neurology of psychiatry to someone else. 
However little or no is talked about within the DSM besides the rule out circumstances:
“the disturbance is (or shouldn’t be) attributable to the physiological results of a
substance or one other medical situation (or psychological dysfunction).”  That’s too obscure for psychiatrists.  

The Construction and Dimensions Committee (3) is charged with
arising with essentially the most clinically helpful construction of the longer term DSM.  That entails incorporating latest
analysis.  They’ve produced a prolonged
desk summarizing the entire classes, named classes and prevailing
frameworks and theories used for all of the DSM beginning with the primary one. That
quantity goes from 4 to 22 classes within the DSM 5-TR.  There may be often criticism about diagnostic
proliferation – however not a lot about class proliferation.  After I encounter these numbers – I remind
myself that we began with a unitary psychosis mannequin within the 19th
century.  By 1918 (6) the scenario not
significantly better with the most important diagnostic classes being psychosis or not
psychosis
. It may very well be argued that early diagnostic and classification
efforts failed to acknowledge or embrace psychological problems that had been noticed
since historic occasions somewhat than decrease numbers being extra supreme.

The fourth paper (4) is targeted on High quality of Life (QOL) as
a vital a part of psychiatric diagnoses. They set up premises based mostly on
the often-quoted literature on incapacity related to psychiatric
diagnoses.  They describe a bidirectional
relationship:  “… signs of a psychological
sickness can impair the person’s functioning in day by day life, and poor
functioning can in flip result in or exacerbate the signs of a psychological sickness.”  The paper has two definitions of QOL.  The writer’s definition is “an individual’s
subjective notion of their emotional, psychological, and social well-being.”  The paper additionally accommodates the World Well being
Group (WHO) definition of QOL “incorporates how a person feels
about their emotional, social, and bodily well-being, which may have an effect on and be
affected by their psychological well being situation(s).”  WHO additional defines QOL as “one’s perceptions
of their place in life, contextualized by the tradition and worth methods in
which they reside, in relation to their expectations, objectives, and requirements.”  There’s a associated dialogue on the World
Evaluation of Functioning (GAF) from earlier DSMs.  QOL metrics have been determined to be subjective
somewhat than medical rating just like the GAF. 
The GAF was additionally thought to conflate signs of psychological sickness with
functioning regardless that there’s a clear relationship. 

The authors focus on the World Well being Group Incapacity
Evaluation Schedule 2.0) (WHODAS-2.0) and it’s use to fee psychiatric
incapacity. It’s a 36-item, 100-point self-administered, 6-dimension score
scale.  Administration and scoring in
full medical schedules was thought-about a limiting issue, however clinically the
query is what occurs with extra recognized issues?  Does the remedy plan broaden
proportionally?  Will psychiatrists be
anticipated to both deal with immediately or develop referral sources for all of the disabilities
recognized as communication, mobility, self-care, interpersonal, life and
societal actions. Extra briefer QOL devices are mentioned as effectively
as transient interventions.

A essential idea that was not talked about was the affected person’s
baseline perform. With each affected person I noticed, I had a subjective (and infrequently
different informant) description of their baseline degree occupational, educational,
and interpersonal functioning.  In some
case it concerned actions of day by day residing (ADLs) and instrumental actions
of day by day residing (IADLS).  On inpatient
models these ADLs have been typically documented by occupational therapists.  In my outpatient Alzheimer’s Illness and
Reminiscence Dysfunction clinic – each new affected person had their ADLs documented by the RN
staffing the clinic.  It required hours
of labor per day that weren’t reimbursed. 
My clinic was finally shut down due to that unreimbursed work and
my refusal to do the work myself without cost. The extra price and time for
these assessments is a actuality issue within the trendy rationed well being care
system.

The fifth paper is entitled: “The Way forward for DSM: A Strategic
Imaginative and prescient for Incorporating Socioeconomic, Cultural, and Environmental
Determinants and Intersectionality.”  The
definition of intersectionality is “a framework for understanding how varied
social and political identities—corresponding to race, gender, class, sexuality, and
capacity—overlap and intersect to create distinctive combos of privilege and
systemic discrimination.”  I’ve a
downside with the usage of a obscure time period that’s used rhetorically being applied
in a DSM.  The DSM is a goal of
rhetoric and placing rhetoric within the handbook is more likely to amplify its position as a
goal.  I’ve additionally reviewed ample
proof that the most important journal of the APA – was unable to separate rhetoric
from actuality within the case of clear
historic proof
about racial discrimination.  This highlights the necessity for clear definitions
and avoiding political rhetoric in any rethinking of this handbook.  It additionally highlights the necessity for clear
proof somewhat than rhetoric and that commentaries – even within the flagship
journal of the American Psychiatric Affiliation can’t be depended upon for
that proof.

Intersectionality is pointless to get at what the authors
hope to perform.  Cross cultural
psychiatric evaluations are the working example. They contain an evaluation of
cultural variations and the way the tradition impacts illness definitions and
displays, the sick position in that tradition, and the way demographic components have an effect on
how an individual is advantaged or deprived of their authentic or adopted
tradition. The authors counsel it’s vital to advertise varied public well being
prevention methods and promote well being care fairness.  So far as I can inform, well being care fairness in
the US is strictly within the purview of politics and in a single yr an enormous quantity
has been destroyed by the Trump administration. 
Political options ought to be prevented as a lot as rhetorical options in a
DSM, particularly given the abysmal observe report of doctor medical
organizations in politics.

The authors outline socioeconomic, cultural, and
environmental determinants of well being (SCE-DoH) as the important thing focus (together with
intersectionality). These determinants are all well-known to any psychiatrist
who has recorded a social historical past for an in depth evaluation and that ought to
embrace all of us.  They conceptualize
them as modifiable or non-modifiable threat components and the way they could be related
for prevention methods.  A lot of the
prevention is exterior the scope of psychiatric observe and advocacy by
skilled organizations has questionable impacts.  In addition they use the Dahlgren-Whitehead mannequin of
fundamental well being determinants and canopy recommendations of screening affected person populations
for these variables.  They conclude that
the subsequent DSM ought to embrace suggestions to make use of a number of “vetted
devices” to make these SCE-DoH assessments. 
They provide an instance of how this evaluation may be constructed into routine
medical care.  Apparently, the
psychiatric evaluation shouldn’t be included within the “routine diagnostic workflow”
(see determine 2).  Wanting on the technique
2 the place the SCE-DoH is used to find out “administration as regular” versus “enhanced
case administration” – I made that willpower myself for 40 years. For the final
25 years that “enhanced case administration” was not out there for most individuals
needing it. That tells me that the steered evaluation is already being accomplished
by some individuals and the required assets are usually not there.  I discovered myself documenting that reality in too
many instances.

The Committee realizes that they can’t create an extra
burden on clinicians who have already got unrealistic calls for and supply far too
a lot work without cost in rationed environments. 
That interprets to much less time to do complete assessments – no more.
 

Although these are very preliminary statements in regards to the
future DSM – I’m not very hopeful at this level.  The commentaries to date appear directed at
criticisms from exterior of the sphere somewhat than what psychiatrists want.  Aside from the criticism I’ve supplied so
far what’s noticeable:

1:  The dearth of
commentary on medical and neurological diagnoses – in any psychiatric
classification it’s both express (or implicit) that what are thought-about the
present psychiatric diagnoses are usually not brought on by a substance or one other medical
prognosis.  The non-DSM diagnostic
methods are typically simply centered on the listed signs of those problems
and there’s no provision for different medical circumstances.  It is usually not express sufficient in medical
coaching. At some degree that is defined away and needing to make the most of no matter
assets can be found.  That isn’t
sufficient.  The DSM ought to have a bit of
illnesses by system that should be recognized if they’re current and no less than a
reference to how that ought to be accomplished. 
There may be not almost sufficient data on what medical diagnoses
psychiatrists make.  That is additionally an
essential function for resident schooling since it will counsel how a lot medical
drugs and neurology residents should be uncovered to and whether or not they’re
seeing related instances.

2:   Philosophical
criticisms whereas minimizing biology and historical past –  in a number of of the papers the authors speak
about “pure sorts” and “carving nature on the joints”.  That is philosophy converse that has been used
to obfuscate the sphere. The primary time I encountered these arguments they
struck me as apparent nonsense.  That was
first steered by Thomas Sydenham when he made this assertion in about 1640:

“In writing the historical past of a illness, each philosophical
speculation in any respect, that has beforehand occupied the thoughts of the writer,
ought to lie in abeyance. This being accomplished, the clear and pure phenomena of the
illness ought to be famous — these, and these solely…”
(7) 

DeGowin and DeGowin (8) summed up the method over the subsequent
three centuries:

“For a number of thousand years physicians have recorded
observations and research about their sufferers. 
Within the accumulating info they’ve acknowledged patterns of disordered
bodily features and buildings in addition to types of psychological aberration.  When such classes have been sufficiently
distinctive, they have been termed illnesses and given particular names.”

It appears that evidently the conceptual readability right here requires no
reference to naturalism or essentialism. 
It solely requires empiricism and a willpower of sufficiently
distinctive
.  In my lengthy and
intensive profession – the one place I’ve encountered these philosophical
arguments was in a literature that was typically essential of psychiatry.  Within the course of it additionally requires psychiatrists
to droop the concept empirical adequacy shouldn’t be all that’s required, however
additionally all that we have been taught. 

Conceptual expansionism or semantic drift has been used to
criticize the DSM and psychiatry and that must be referred to as out wherever it
occurs.  By that I imply an idea that
is developed inside one educational silo that’s instantly utilized with out
precedent or a transparent foundation to psychiatry. 
On this weblog I’ve criticized a number of of those functions together with
epistemic and hermeneutical injustice. 
Though not one of the Am J Psychiatry papers used the time period, I did
encounter people psychology now being utilized to criticize the DSM (9) in
a mailing.  That may be a idea I used to be
acquainted with from Andy Clark’s work (10).  If you’re not acquainted with the idea a typically
accepted definition could be:  “The
on a regular basis capacity to foretell and clarify the habits of ourselves and others by
attributing psychological states—corresponding to beliefs, needs, intentions, and fears.”  In different phrases – you see someone doing
one thing and provide you with a concept of why they’re doing it.  I’ve written about it on this weblog as a
cause why many individuals appear assured of their information of psychiatry and
psychology regardless that they’ve by no means been skilled in both. There are
a number of theories of how a people psychology concept can apply, however the authentic debate
centered on how the ascribed beliefs, needs, intentions, and many others. had no neural
equal and subsequently that in some unspecified time in the future these psychological states could be
changed by extra scientific phrases. In different phrase suggesting that the DSM is people
psychology
is principally saying the indicators and signs used as descriptors
don’t have any mind equal and subsequently it’s an invalid classification. This
argument is basically the identical argument that there’s an explanatory hole
between what most individuals contemplate consciousness to be and the neural substrates
that causes it.  Consciousness is roughly
represented in neural substrate and the identical factor may be mentioned for psychological
dysfunction signs.      

3:  The continued lack
of deal with what could be helpful to psychiatrists – 

After I take into consideration a DSM that could be helpful to
psychiatrists or no less than the form of psychiatrists I’m used to working with –
there must be greater than the standard slicing and dicing of diagnostic
standards.  Including extra work with extra
score scales can be a disappointment. 
A handbook breaking down the present work with examples and a suggestion
of the potential exhaustive information factors could be. For instance, stating
that the everyday phenomenology of a dysfunction ought to be adequately represented
within the historical past of the current sickness. 
That clearly consists of any precipitating components no matter what
they could be – organic or sociocultural. The following part ought to embrace a
dialogue of the previous psychiatric and medical histories in addition to comorbid
circumstances.  Psychiatrists ought to be
anticipated to know related medical diagnoses, how medical comorbidity impacts
psychiatric remedy, and medical causes of psychiatric displays.  The standard disclaimer about medical circumstances
is as insufficient as a disclaimer about sociocultural points of care.  The brand new DSM shouldn’t be a mere assortment
of psychosocial determinants fully devoid of drugs.

A extra formal formulation part ought to be there.  Within the DSM-5 for instance it’s known as
a “concise summery of the social, psychological, and organic components that
could have contributed to growing a given psychological dysfunction.”  (p. 19). 
There are a number of methods to write down a formulation (behavioral,
psychodynamic, neuropsychiatric, and others) and they need to all be mentioned
within the DSM.

4:  A concept part
on the biology of psychiatric diagnoses – why they’re advanced and the way that
complexity ought to be approached.  There
are specialists within the area who can touch upon how polygenes produce quantitative
diagnoses that may mix imperceptibility into the normative states.  A few of those self same specialists can focus on the
statistical strategies used to attempt to enhance classifications and the way that works
clinically.  There ought to be a comparability
with different generally described quantitative problems like hypertension and
diabetes mellitus Sort 2.  The
classification system of rheumatology may very well be mentioned as a direct comparability
to the DSM.

I’ve written about the issue with the time period transdiagnostic.
I don’t assume it provides and specificity
to interventions.  In psychiatry what’s
thought-about a transdiagnostic symptom can even conceal a possible main
downside. One of the vital frequent situations I encountered in observe was longstanding
insomnia previous to the onset of despair. Within the transdiagnostic situation,
insomnia may very well be thought-about simply that or a symptom of one other dysfunction somewhat
than a main sleep problem. All these points together with categorical versus
dimensional diagnoses ought to be lined on this concept part written by our specialists.  There are many causes to not blindly
settle for the transdiagnostic jargon as being that related.    

Psychometrics may be mentioned within the concept part.  We’ve got all heard and examine reliability
of diagnoses for many years and a scarcity of validity. Reliability statistics are
out there for a variety of DSM classes and that may very well be included as a single
graphic with a quick dialogue.  The
dialogue of validity must be extra in depth and nuanced somewhat than simply
dismissed.  Examine teams from DSM-5 have been
engaged on 11
validity indicators
.  It’s time to
see them on graphics like what may be constructed for reliability. The information
ought to be included the place it exists.

5:  A genetics part:  Genetics and the related molecular biology
is the way forward for drugs and psychiatry. A abstract of that information ought to be
out there within the DSM in addition to the clear significance of this data.  On the organic degree, the dialogue
ought to be clearly centered on modifications in mind methods related to problems
and the issue of many genes affecting these methods.   

6: 
Definition/Threshold of a dysfunction:

There may be at all times criticism in regards to the dysfunction threshold
for making a diagnostic evaluation. 
There may be by no means a lot dialogue about why it’s vital or why there
are consensus diagnoses.  Even a superficial
take a look at different specialties that deal with polygenic heterogeneous entities invitations
comparability.  Rheumatology is a case
in level
:   

“Rheumatologists face distinctive challenges in discriminating
between rheumatologic and non-rheumatologic problems with related
manifestations, and in discriminating amongst rheumatologic problems with shared
options.  Nearly all of rheumatic
illnesses are multisystem problems with poorly understood etiology; they have a tendency
to be heterogeneous of their presentation, course, and consequence, and wouldn’t have
a single medical, laboratory, pathological, or radiological function that would
function a “gold commonplace” in assist of prognosis and/or classification.”

A latest overview of polymyalgia rheumatica (PMR) within the NEJM
(11) checked out diagnostic algorithms for each acute PMR and remedy.  The introduction concerned the assertion:  “The prognosis of polymyalgia rheumatica is
made on the premise of medical grounds by combining attribute indicators and
signs with laboratory findings and ruling out frequent mimickers corresponding to
late-onset gout and pseudogout and others.”  (p. 1099). 
I counted 23 circumstances within the differential prognosis.  One of many standards for the prognosis is “useful
impairment”.  The implication is that it
is because of morning stiffness or attainable ache however that’s not particular.  There are restricted critiques of easy methods to set up
diagnostic standards for illnesses and problems that lack goal exams
(12).  I believe the diploma of dysfunction
is clearly related when assessing problems which might be based mostly on purely
subjective indicators and signs.  It
components into routine medical care of each recognized and unknown diagnoses. On this
weblog I’ve documented examples type quite a few medical and surgical specialties.

That’s my criticism after studying 5 present papers on the
route of the DSM.  I actually don’t
need the subsequent quantity to appear like what has been described to date. After I assume
about my remaining 1500-2500 phrase assessments that include nearly every part
the writer of those papers focus on and way more – I don’t wish to see all
that good work sacrificed as a result of someone desires to incorporate extra checklists or
dimensions of questionable worth. I’ve had individuals inform me years and in some
instances many years later, that they discovered these assessments to be helpful and
helpful for future analysis and remedy of that very same particular person.  

If I needed to seize three components that the
future DSM planning appears to overlook it’s that phenomenological assessments can
simply include as a lot or extra information than checklists, that psychiatry is a
medical specialty, and that like all medical specialties the sphere has
boundaries. The present recommendations from these papers stretch these boundaries into
activism, politics, and importing criticism from different educational silos somewhat
than a restatement of what’s related for psychiatric evaluation and
classification. 

That ought to be the precedence…    

 

George Dawson, MD, DFAPA

 

 

 

References:

1:  Oquendo MA,
Abi-Dargham A, Alpert JE, Benton TD, Clarke DE, Compton WM, Drexler Okay, Fung KP,
Kas MJH, Malaspina D, O’Keefe VM, Öngür D, Wainberg ML, Yonkers KA, Yousif L,
Gogtay N. Preliminary Technique for the Way forward for DSM. Am J Psychiatry. 2026 Jan
28:appiajp20250878. doi: 10.1176/appi.ajp.20250878. Epub forward of print. PMID:
41593833

2:   Cuthbert B,
Ajilore O, Alpert JE, Clarke DE, Compton WM, Drexler Okay, Fung KP, Gogtay N, Kas
MJH, Kumar A, Malaspina D, O’Keefe VM, Öngür D, Tamminga C, Wainberg ML,
Yonkers KA, Yousif L, Abi-Dargham A, Oquendo MA. The Way forward for DSM: Function of
Candidate Biomarkers and Organic Elements. Am J Psychiatry. 2026 Jan
28:appiajp20250877. doi: 10.1176/appi.ajp.20250877. Epub forward of print. PMID:
41593830.

3:  Öngür D,
Abi-Dargham A, Clarke DE, Compton WM, Cuthbert B, Fung KP, Gogtay N, Kas MJH,
Kumar A, Malaspina D, O’Keefe VM, Oquendo MA, Wainberg ML, Yonkers KA, Yousif
L, Alpert JE. The Way forward for DSM: A Report From the Construction and Dimensions
Subcommittee. Am J Psychiatry. 2026 Jan 28:appiajp20250876. doi:
10.1176/appi.ajp.20250876. Epub forward of print. PMID: 41593835.

4:  Drexler Okay, Alpert
JE, Benton TD, Fung KP, Gogtay N, Malaspina D, O’Keefe VM, Oquendo MA, Wainberg
ML, Yonkers KA, Yousif L, Clarke DE. The Way forward for DSM: Are Functioning and
High quality of Life Important Parts of a Full Psychiatric Prognosis? Am J
Psychiatry. 2026 Jan 28:appiajp20250874. doi: 10.1176/appi.ajp.20250874. Epub
forward of print. PMID: 41593851.

5:  Wainberg ML,
Alpert JE, Benton TD, Clarke DE, Drexler Okay, Fung KP, Gogtay N, Malaspina D,
O’Keefe VM, Oquendo MA, Yonkers KA, Yousif L. The Way forward for DSM: A Strategic
Imaginative and prescient for Incorporating Socioeconomic, Cultural, and Environmental
Determinants and Intersectionality. Am J Psychiatry. 2026 Jan
28:appiajp20250875. doi: 10.1176/appi.ajp.20250875. Epub forward of print. PMID:
41593836.

6: American Medico-Psychological Affiliation. Statistical
Guide for the Use of Establishments for the Insane.  1918:  https://dn790008.ca.archive.org/0/gadgets/statisticalmanu00assogoog/statisticalmanu00assogoog.pdf

7:  Sydenham, Thomas,
1624-1689; Greenhill, William Alexander, 1814-1894; Latham, R. G. (Robert
Gordon), 1812-1888.  The works of Thomas
Sydenham, M.D.  Quantity 1, London.
Sydenham Society.  1848-1850. P. 14 
https://archive.org/particulars/worksofthomassyd01sydeiala/web page/lv/mode/1up?q=abeyance

Translation of Medical Observations by Thomas Sydenham,
London, 1669. The Preface.  Authentic was
in Latin.

8:  DeGowin EL, DeGowin
RL.  Bedside Diagnostic Examination, 3rd
ed.  New York.  Macmillan Publishing Firm, Inc.  1976. P. 1.

9:  Aftab A. The
Future DSM: Daring redesign, lingering blind spots.  Psychiatric Occasions. March 2026: 12-16.

10:  Clark A.  Microcognition: Philosophy, cognitive
science, and parallel distributed processing. 
Cambridge, MA.  The MIT press.
1989.   

11:  Dejaco C,
Matteson EL. Polymyalgia Rheumatica. N Engl J Med. 2026 Mar
12;394(11):1097-1109. doi: 10.1056/NEJMcp2506817. PMID: 41812194.

12:  White SJ, Barker
TH, Merlin T, Holland G, Sanders S, O’Mahony A, Pathirana T, Theiss R, Pollock
D, Reid N, Munn Z. Strategies for growing diagnostic standards for circumstances
with out goal exams, biomarkers, or reference requirements: a scoping overview.
J Clin Epidemiol. 2026 Feb;190:112052. doi: 10.1016/j.jclinepi.2025.112052.
Epub 2025 Nov 18. PMID: 41265667.

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