{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:11:58Z","timestamp":1792023118740,"version":"4.4.0"},"reference-count":63,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,6,1]],"date-time":"2021-06-01T00:00:00Z","timestamp":1622505600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Best Practice &amp; Research Clinical Rheumatology"],"published-print":{"date-parts":[[2021,6]]},"DOI":"10.1016\/j.berh.2021.101669","type":"journal-article","created":{"date-parts":[[2021,4,7]],"date-time":"2021-04-07T22:43:33Z","timestamp":1617835413000},"page":"101669","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":23,"title":["Diagnosis, classification, and assessment in psoriatic arthritis"],"prefix":"10.1016","volume":"35","author":[{"given":"Anna","family":"Antony","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William","family":"Tillett","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib1","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/0049-0172(73)90035-8","article-title":"Psoriatic arthritis","volume":"3","author":"Moll","year":"1973","journal-title":"Semin Arthritis Rheum"},{"issue":"4","key":"10.1016\/j.berh.2021.101669_bib2","doi-asserted-by":"crossref","first-page":"545","DOI":"10.1016\/j.rdc.2015.07.001","article-title":"The epidemiology of psoriatic arthritis","volume":"41","author":"Ogdie","year":"2015","journal-title":"Rheum Dis Clin N Am"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib3","doi-asserted-by":"crossref","first-page":"2665","DOI":"10.1002\/art.21972","article-title":"Classification criteria for psoriatic arthritis: development of new criteria from a large international study","volume":"54","author":"Taylor","year":"2006","journal-title":"Arthritis Rheum"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib4","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1038\/s41584-018-0006-8","article-title":"Axial disease in psoriatic arthritis and ankylosing spondylitis: a critical comparison","volume":"14","author":"Feld","year":"2018","journal-title":"Nat Rev Rheumatol"},{"issue":"9","key":"10.1016\/j.berh.2021.101669_bib5","doi-asserted-by":"crossref","first-page":"834","DOI":"10.1093\/rheumatology\/33.9.834","article-title":"Psoriatic arthritis: outcome of disease subsets and relationship of joint disease to nail and skin disease","volume":"33","author":"Jones","year":"1994","journal-title":"Br J Rheumatol"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib6","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1186\/s13075-019-1811-4","article-title":"Time to minimal disease activity in relation to quality of life, productivity, and radiographic damage 1 year after diagnosis in psoriatic arthritis","volume":"21","author":"Wervers","year":"2019","journal-title":"Arthritis Res Ther"},{"issue":"10","key":"10.1016\/j.berh.2021.101669_bib7","doi-asserted-by":"crossref","first-page":"3150","DOI":"10.1002\/art.34536","article-title":"Sensitivity and specificity of the classification of psoriatic arthritis criteria in early psoriatic arthritis","volume":"64","author":"Coates","year":"2012","journal-title":"Arthritis Rheum"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib8","doi-asserted-by":"crossref","first-page":"1045","DOI":"10.1136\/annrheumdis-2013-204858","article-title":"Diagnostic delay of more than 6 months contributes to poor radiographic and functional outcome in psoriatic arthritis","volume":"74","author":"Haroon","year":"2015","journal-title":"Ann Rheum Dis"},{"key":"10.1016\/j.berh.2021.101669_bib9","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1002\/art.1780070113","article-title":"Ara nomenclature and classification of arthritis and rheumatism (tentative)","volume":"7","author":"Blumberg","year":"1964","journal-title":"Arthritis Rheum"},{"issue":"10","key":"10.1016\/j.berh.2021.101669_bib10","doi-asserted-by":"crossref","first-page":"1522","DOI":"10.3899\/jrheum.160904","article-title":"Updating the psoriatic arthritis (PsA) core domain set: a report from the PsA workshop at OMERACT 2016","volume":"44","author":"Orbai","year":"2017","journal-title":"J\u00a0Rheumatol"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib11","doi-asserted-by":"crossref","first-page":"1028","DOI":"10.3899\/jrheum.181218","article-title":"Instrument selection using the OMERACT filter 2.1: the OMERACT methodology","volume":"46","author":"Beaton","year":"2019","journal-title":"J\u00a0Rheumatol"},{"issue":"238","key":"10.1016\/j.berh.2021.101669_bib12","first-page":"127","article-title":"Psoriatic arthritis (PSA)--an analysis of 220 patients","volume":"62","author":"Gladman","year":"1987","journal-title":"Q\u00a0J Med"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib13","doi-asserted-by":"crossref","first-page":"996","DOI":"10.3899\/jrheum.181089","article-title":"Endorsement of the 66\/68 joint count for the measurement of musculoskeletal disease activity: OMERACT 2018 psoriatic arthritis workshop report","volume":"46","author":"Duarte-Garcia","year":"2019","journal-title":"J\u00a0Rheumatol"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib14","doi-asserted-by":"crossref","first-page":"721","DOI":"10.1016\/j.semarthrit.2013.11.003","article-title":"Reliability of joint count assessment in rheumatoid arthritis: a systematic literature review","volume":"43","author":"Cheung","year":"2014","journal-title":"Semin Arthritis Rheum"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib15","first-page":"1740","article-title":"International spondyloarthritis interobserver reliability exercise--the INSPIRE study: II. Assessment of peripheral joints, enthesitis, and dactylitis","volume":"34","author":"Gladman","year":"2007","journal-title":"J\u00a0Rheumatol"},{"issue":"3","key":"10.1016\/j.berh.2021.101669_bib16","doi-asserted-by":"crossref","first-page":"840","DOI":"10.1002\/art.22443","article-title":"A\u00a0longitudinal study of the effect of disease activity and clinical damage on physical function over the course of psoriatic arthritis: does the effect change over time?","volume":"56","author":"Husted","year":"2007","journal-title":"Arthritis Rheum"},{"issue":"3","key":"10.1016\/j.berh.2021.101669_bib17","doi-asserted-by":"crossref","first-page":"370","DOI":"10.1136\/ard.2006.056457","article-title":"Predictors for radiological damage in psoriatic arthritis: results from a single centre","volume":"66","author":"Bond","year":"2007","journal-title":"Ann Rheum Dis"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib18","doi-asserted-by":"crossref","first-page":"264","DOI":"10.1002\/acr.22401","article-title":"Factors explaining the discrepancy between physician and patient global assessment of joint and skin disease activity in psoriatic arthritis patients","volume":"67","author":"Eder","year":"2015","journal-title":"Arthritis Care Res"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib19","doi-asserted-by":"crossref","first-page":"948","DOI":"10.1136\/ard.2007.084244","article-title":"Development and validation of the spondyloarthritis research Consortium of Canada (SPARCC) enthesitis index","volume":"68","author":"Maksymowych","year":"2009","journal-title":"Ann Rheum Dis"},{"issue":"5","key":"10.1016\/j.berh.2021.101669_bib20","doi-asserted-by":"crossref","first-page":"686","DOI":"10.1002\/art.23568","article-title":"Measuring clinical enthesitis in psoriatic arthritis: assessment of existing measures and development of an instrument specific to psoriatic arthritis","volume":"59","author":"Healy","year":"2008","journal-title":"Arthritis Rheum"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib21","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1136\/ard.62.2.127","article-title":"Assessment of enthesitis in ankylosing spondylitis","volume":"62","author":"Heuft-Dorenbosch","year":"2003","journal-title":"Ann Rheum Dis"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib22","doi-asserted-by":"crossref","first-page":"241","DOI":"10.32098\/mltj.02.2016.12","article-title":"Assessment of enthesitis in patients with psoriatic arthritis using clinical examination and ultrasound","volume":"6","author":"Kristensen","year":"2016","journal-title":"Muscles Ligaments Tendons J"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib23","doi-asserted-by":"crossref","first-page":"869","DOI":"10.3899\/jrheum.181380","article-title":"Assessment of enthesitis in psoriatic arthritis","volume":"46","author":"Helliwell","year":"2019","journal-title":"J\u00a0Rheumatol"},{"issue":"Supplement_1","key":"10.1016\/j.berh.2021.101669_bib24","doi-asserted-by":"crossref","first-page":"i15","DOI":"10.1093\/rheumatology\/keaa040","article-title":"Enthesitis in psoriatic arthritis (Part 2): imaging","volume":"59","author":"Kaeley","year":"2020","journal-title":"Rheumatology"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib25","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1093\/rheumatology\/kex079","article-title":"The problem in differentiation between psoriatic-related polyenthesitis and fibromyalgia","volume":"57","author":"Marchesoni","year":"2018","journal-title":"Rheumatology"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib26","first-page":"31","article-title":"Assessment of enthesis in patients with psoriatic arthritis and fibromyalgia using clinical examination and ultrasound","volume":"38","author":"Fiorenza","year":"2020","journal-title":"Clin Exp Rheumatol"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib27","first-page":"1302","article-title":"Measuring dactylitis in clinical trials: which is the best instrument to use?","volume":"34","author":"Healy","year":"2007","journal-title":"J\u00a0Rheumatol"},{"issue":"9","key":"10.1016\/j.berh.2021.101669_bib28","doi-asserted-by":"crossref","first-page":"1235","DOI":"10.1002\/art.24562","article-title":"International multicenter psoriasis and psoriatic arthritis reliability trial for the assessment of skin, joints, nails, and dactylitis","volume":"61","author":"Chandran","year":"2009","journal-title":"Arthritis Rheum"},{"issue":"4","key":"10.1016\/j.berh.2021.101669_bib29","doi-asserted-by":"crossref","first-page":"1157","DOI":"10.1007\/s10067-019-04683-2","article-title":"Predominant ultrasonographic extracapsular changes in symptomatic psoriatic dactylitis: results from a multicenter cross-sectional study comparing symptomatic and asymptomatic hand dactylitis","volume":"39","author":"Girolimetto","year":"2020","journal-title":"Clin Rheumatol"},{"issue":"3","key":"10.1016\/j.berh.2021.101669_bib30","doi-asserted-by":"crossref","first-page":"515","DOI":"10.1007\/s10067-014-2734-8","article-title":"Comparison of ASDAS and BASDAI as a measure of disease activity in axial psoriatic arthritis","volume":"34","author":"Kilic","year":"2015","journal-title":"Clin Rheumatol"},{"issue":"12","key":"10.1016\/j.berh.2021.101669_bib31","doi-asserted-by":"crossref","first-page":"2160","DOI":"10.1136\/ard.2010.129726","article-title":"Is ASDAS better than BASDAI as a measure of disease activity in axial psoriatic arthritis?","volume":"69","author":"Eder","year":"2010","journal-title":"Ann Rheum Dis"},{"issue":"3","key":"10.1016\/j.berh.2021.101669_bib32","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1002\/art.20421","article-title":"Could the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) be a valid measure of disease activity in patients with psoriatic arthritis?","volume":"51","author":"Taylor","year":"2004","journal-title":"Arthritis Rheum"},{"issue":"5","key":"10.1016\/j.berh.2021.101669_bib33","doi-asserted-by":"crossref","first-page":"1006","DOI":"10.3899\/jrheum.080491","article-title":"Psoriatic arthritis spondylitis radiology index: a modified index for radiologic assessment of axial involvement in psoriatic arthritis","volume":"36","author":"Lubrano","year":"2009","journal-title":"J\u00a0Rheumatol"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib34","doi-asserted-by":"crossref","first-page":"990","DOI":"10.3899\/jrheum.181077","article-title":"PsAID12 provisionally endorsed at OMERACT 2018 as core outcome measure to assess psoriatic arthritis-specific health-related quality of life in clinical trials","volume":"46","author":"Orbai","year":"2019","journal-title":"J\u00a0Rheumatol"},{"issue":"7","key":"10.1016\/j.berh.2021.101669_bib35","doi-asserted-by":"crossref","first-page":"936","DOI":"10.1136\/ard.2006.065763","article-title":"Functional assessment of chronic illness therapy-fatigue scale is valid in patients with psoriatic arthritis","volume":"66","author":"Chandran","year":"2007","journal-title":"Ann Rheum Dis"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib36","doi-asserted-by":"crossref","first-page":"58","DOI":"10.3899\/jrheum.191119","article-title":"Appraisal of candidate instruments for assessment of the physical function domain in patients with psoriatic arthritis","volume":"48","author":"Leung","year":"2020","journal-title":"J\u00a0Rheumatol"},{"issue":"5","key":"10.1016\/j.berh.2021.101669_bib37","doi-asserted-by":"crossref","first-page":"1158","DOI":"10.1016\/j.semarthrit.2020.05.022","article-title":"Clinical trial discrimination of physical function instruments for psoriatic arthritis: a systematic review","volume":"50","author":"Leung","year":"2020","journal-title":"Semin Arthritis Rheum"},{"key":"10.1016\/j.berh.2021.101669_bib38","article-title":"Comparing the patient reported physical function outcome measures in a real-life international cohort of patients with psoriatic arthritis","author":"Leung","year":"2020","journal-title":"Arthritis Care Res"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib39","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1093\/rheumatology\/key297","article-title":"Trajectory of radiographic change over a decade: the effect of transition from conventional synthetic disease-modifying antirheumatic drugs to anti-tumour necrosis factor in patients with psoriatic arthritis","volume":"58","author":"Allard","year":"2019","journal-title":"Rheumatology"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib40","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1002\/acr.20018","article-title":"A\u00a0modified Sharp score demonstrates disease progression in established psoriatic arthritis","volume":"62","author":"Ravindran","year":"2010","journal-title":"Arthritis Care Res"},{"issue":"12","key":"10.1016\/j.berh.2021.101669_bib41","doi-asserted-by":"crossref","first-page":"1460","DOI":"10.1093\/rheumatology\/keg384","article-title":"A\u00a0prospective, clinical and radiological study of early psoriatic arthritis: an early synovitis clinic experience","volume":"42","author":"Kane","year":"2003","journal-title":"Rheumatology"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib42","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1002\/1529-0131(200104)45:2<151::AID-ANR168>3.0.CO;2-T","article-title":"Health-related quality of life of patients with psoriatic arthritis: a comparison with patients with rheumatoid arthritis","volume":"45","author":"Husted","year":"2001","journal-title":"Arthritis Rheum"},{"key":"10.1016\/j.berh.2021.101669_bib43","doi-asserted-by":"crossref","first-page":"11","DOI":"10.3899\/jrheum.200121","article-title":"Outcomes of the 2019 GRAPPA workshop on continuous composite indices for the assessment of psoriatic arthritis and membership-recommended next steps","volume":"96","author":"Tillett","year":"2020","journal-title":"J\u00a0Rheumatol Suppl"},{"issue":"12","key":"10.1016\/j.berh.2021.101669_bib44","doi-asserted-by":"crossref","first-page":"2021","DOI":"10.1002\/art.1780391211","article-title":"Comparison of sulfasalazine and placebo in the treatment of reactive arthritis (Reiter's syndrome). A Department of Veterans Affairs Cooperative Study","volume":"39","author":"Clegg","year":"1996","journal-title":"Arthritis Rheum"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib45","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1136\/ard.2008.102053","article-title":"Defining minimal disease activity in psoriatic arthritis: a proposed objective target for treatment","volume":"69","author":"Coates","year":"2010","journal-title":"Ann Rheum Dis"},{"issue":"10012","key":"10.1016\/j.berh.2021.101669_bib46","doi-asserted-by":"crossref","first-page":"2489","DOI":"10.1016\/S0140-6736(15)00347-5","article-title":"Effect of tight control of inflammation in early psoriatic arthritis (TICOPA): a UK multicentre, open-label, randomised controlled trial","volume":"386","author":"Coates","year":"2015","journal-title":"Lancet"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib47","doi-asserted-by":"crossref","DOI":"10.1136\/rmdopen-2019-001002","article-title":"Measurement properties of the minimal disease activity criteria for psoriatic arthritis","volume":"5","author":"Coates","year":"2019","journal-title":"RMD open"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib48","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1136\/ard.2010.129379","article-title":"Development of a preliminary composite disease activity index in psoriatic arthritis","volume":"70","author":"Mumtaz","year":"2011","journal-title":"Ann Rheum Dis"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib49","doi-asserted-by":"crossref","first-page":"986","DOI":"10.1136\/annrheumdis-2012-201341","article-title":"The development of candidate composite disease activity and responder indices for psoriatic arthritis (GRACE project)","volume":"72","author":"Helliwell","year":"2012","journal-title":"Ann Rheum Dis"},{"issue":"5","key":"10.1016\/j.berh.2021.101669_bib50","doi-asserted-by":"crossref","first-page":"811","DOI":"10.1136\/annrheumdis-2015-207507","article-title":"Disease activity in psoriatic arthritis (PsA): defining remission and treatment success using the DAPSA score","volume":"75","author":"Schoels","year":"2016","journal-title":"Ann Rheum Dis"},{"issue":"7","key":"10.1016\/j.berh.2021.101669_bib51","doi-asserted-by":"crossref","first-page":"e61","DOI":"10.1136\/annrheumdis-2018-213548","article-title":"To DAPSA or not to DAPSA? That is not the question","volume":"78","author":"Schoels","year":"2019","journal-title":"Ann Rheum Dis"},{"issue":"8","key":"10.1016\/j.berh.2021.101669_bib52","doi-asserted-by":"crossref","first-page":"1198","DOI":"10.1002\/acr.23460","article-title":"Value of the routine assessment of patient index data 3 in patients with psoriatic arthritis: results from a tight-control clinical trial and an observational cohort","volume":"70","author":"Coates","year":"2018","journal-title":"Arthritis Care Res"},{"issue":"11","key":"10.1016\/j.berh.2021.101669_bib53","doi-asserted-by":"crossref","first-page":"1101","DOI":"10.1093\/rheumatology\/35.11.1101","article-title":"Remission in a prospective study of patients with rheumatoid arthritis. American Rheumatism Association preliminary remission criteria in relation to the disease activity score","volume":"35","author":"Prevoo","year":"1996","journal-title":"Br J Rheumatol"},{"issue":"3","key":"10.1016\/j.berh.2021.101669_bib54","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1002\/art.40391","article-title":"Group for research and assessment of psoriasis and psoriatic arthritis\/outcome measures in Rheumatology consensus-based recommendations and research agenda for use of composite measures and treatment targets in psoriatic arthritis","volume":"70","author":"Coates","year":"2018","journal-title":"Arthritis & rheumatology."},{"issue":"5","key":"10.1016\/j.berh.2021.101669_bib55","doi-asserted-by":"crossref","first-page":"e23","DOI":"10.1136\/annrheumdis-2017-212004","article-title":"GRAPPA-OMERACT initiative to standardise outcomes in psoriatic arthritis clinical trials and longitudinal observational studies","volume":"77","author":"Tillett","year":"2018","journal-title":"Ann Rheum Dis"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib56","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1067\/S0190-9622(03)00910-1","article-title":"Nail Psoriasis Severity Index: a useful tool for evaluation of nail psoriasis","volume":"49","author":"Rich","year":"2003","journal-title":"J Am Acad Dermatol"},{"issue":"2","key":"10.1016\/j.berh.2021.101669_bib57","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1111\/j.1365-2230.2006.02305.x","article-title":"Interobserver reliability of the Nail Psoriasis Severity Index","volume":"32","author":"Aktan","year":"2007","journal-title":"Clin Exp Dermatol"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib58","doi-asserted-by":"crossref","first-page":"1061","DOI":"10.1016\/j.jaad.2014.02.010","article-title":"Scoring nail psoriasis","volume":"70","author":"Klaassen","year":"2014","journal-title":"J Am Acad Dermatol"},{"issue":"3","key":"10.1016\/j.berh.2021.101669_bib59","doi-asserted-by":"crossref","first-page":"591","DOI":"10.1111\/bjd.12664","article-title":"Nail Assessment in Psoriasis and Psoriatic Arthritis (NAPPA): development and validation of a tool for assessment of nail psoriasis outcomes","volume":"170","author":"Augustin","year":"2014","journal-title":"Br J Dermatol"},{"issue":"1","key":"10.1016\/j.berh.2021.101669_bib60","first-page":"123","article-title":"The modified Nail Psoriasis Severity Index: validation of an instrument to assess psoriatic nail involvement in patients with psoriatic arthritis","volume":"34","author":"Cassell","year":"2007","journal-title":"J Rheumatol"},{"issue":"6","key":"10.1016\/j.berh.2021.101669_bib61","doi-asserted-by":"crossref","first-page":"727","DOI":"10.1002\/art.1780380602","article-title":"American College of Rheumatology. Preliminary definition of improvement in rheumatoid arthritis","volume":"38","author":"Felson","year":"1995","journal-title":"Arthritis Rheum"},{"issue":"5","key":"10.1016\/j.berh.2021.101669_bib62","doi-asserted-by":"crossref","first-page":"749","DOI":"10.1002\/acr.22204","article-title":"Comparison of composite measures of disease activity in psoriatic arthritis using data from an interventional study with golimumab","volume":"66","author":"Helliwell","year":"2014","journal-title":"Arthritis Care Res (Hoboken)"},{"issue":"4","key":"10.1016\/j.berh.2021.101669_bib63","doi-asserted-by":"crossref","first-page":"773","DOI":"10.1016\/j.rdc.2009.10.008","article-title":"RAPID3, an index to assess and monitor patients with rheumatoid arthritis, without formal joint counts: similar results to DAS28 and CDAI in clinical trials and clinical care","volume":"35","author":"Pincus","year":"2009","journal-title":"Rheum Dis Clin N Am"}],"container-title":["Best Practice &amp; Research Clinical Rheumatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1521694221000115?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1521694221000115?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T17:21:12Z","timestamp":1761499272000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1521694221000115"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6]]},"references-count":63,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2021,6]]}},"alternative-id":["S1521694221000115"],"URL":"https:\/\/doi.org\/10.1016\/j.berh.2021.101669","relation":{},"ISSN":["1521-6942"],"issn-type":[{"value":"1521-6942","type":"print"}],"subject":[],"published":{"date-parts":[[2021,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Diagnosis, classification, and assessment in psoriatic arthritis","name":"articletitle","label":"Article Title"},{"value":"Best Practice & Research Clinical Rheumatology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.berh.2021.101669","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Crown Copyright \u00a9 2021 Published by Elsevier Ltd. All rights reserved.","name":"copyright","label":"Copyright"}],"article-number":"101669"}}