{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T06:55:56Z","timestamp":1760079356233,"version":"3.35.0"},"reference-count":40,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[1989,6,1]],"date-time":"1989-06-01T00:00:00Z","timestamp":612662400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[1989,6,1]],"date-time":"1989-06-01T00:00:00Z","timestamp":612662400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ard.eular.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Annals of the Rheumatic Diseases"],"published-print":{"date-parts":[[1989,6]]},"DOI":"10.1136\/ard.48.6.488","type":"journal-article","created":{"date-parts":[[2008,7,28]],"date-time":"2008-07-28T23:49:46Z","timestamp":1217288986000},"page":"488-495","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":14,"title":["Seronegative rheumatoid arthritis, rheumatoid factor cross reactive idiotype expression, and hidden rheumatoid factors."],"prefix":"10.1016","volume":"48","author":[{"given":"V.R","family":"Bonagura","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.F","family":"Wedgwood","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Agostino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L","family":"Hatam","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L","family":"Mendez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I","family":"Jaffe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B","family":"Pernis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1356","DOI":"10.1172\/JCI110575","article-title":"Cellular localization of rheumatoid factor idiotypes","volume":"69","author":"R, I.Bonagura V.; G, Kunkel H.; B, Pernis","year":"1982","unstructured":"I Bonagura V R, Kunkel H G, Pernis B. Cellular localization of rheumatoid factor idiotypes. J Clin Invest 1982; 69: 1356-65.","journal-title":"J Clin Invest"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1007\/BF00541277","article-title":"Idiotype expression in rheumatoid synovial plasma cells","volume":"4","author":"Pernis, B.; R, Bonagura V.; Posnett, D.; G, Kunkel H.","year":"1984","unstructured":"Pernis B, Bonagura V R, Posnett D, Kunkel H G. Idiotype expression in rheumatoid synovial plasma cells. Rheumatol Int 1984; 4(suppl): 39-43.","journal-title":"Rheumatol Int"},{"key":"ref_3","first-page":"301","article-title":"Idiotype regulation and rheumatoid factors","author":"Pernis, B.; R, Bonagura V.","year":"1986","unstructured":"Pernis B, Bonagura V R. Idiotype regulation and rheumatoid factors. In: Reichlin M, Capra J D, eds. Idiotypes. Orlando, Florida: Academic Press, 1986: 301-17."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"992","DOI":"10.1016\/0002-9343(81)90846-9","article-title":"The case against seronegative rheumatoid arthritis","volume":"70","author":"Calin, A.; H, Marks S.","year":"1981","unstructured":"Calin A, Marks S H. The case against seronegative rheumatoid arthritis. Am J Med 1981; 70: 992-4.","journal-title":"Am J Med"},{"key":"ref_5","first-page":"175","article-title":"Revision of diagnostic criteria for rheumatoid arthritis","volume":"9","author":"W, Ropes M.; A, Bennett G.; S, Cobb; R, Jacox; A, Jessar R.","year":"1958","unstructured":"Ropes M W, Bennett G A, Cobb S, Jacox R, Jessar R A. Revision of diagnostic criteria for rheumatoid arthritis. Bull Rheum Dis 1958; 9: 175-6.","journal-title":"Bull Rheum Dis"},{"key":"ref_6","first-page":"453","article-title":"New York symposium on population studies in the rheumatic diseases: new diagnostic criteria","volume":"17","author":"H, Bennett P.; A, Burch T.","year":"1967","unstructured":"Bennett P H, Burch T A. New York symposium on population studies in the rheumatic diseases: new diagnostic criteria. Bull Rheum Dis 1967; 17: 453-8.","journal-title":"Bull Rheum Dis"},{"key":"ref_7","first-page":"888","article-title":"The latex fixation test. I. Application to the serologic diagnosis of rheumatoid arthritis","volume":"21","author":"M, Singer J.; M, Plotz C.","year":"1956","unstructured":"Singer J M, Plotz C M. The latex fixation test. I. Application to the serologic diagnosis of rheumatoid arthritis. Am J Med 1956; 21: 888-92.","journal-title":"Am J Med"},{"key":"ref_8","first-page":"6","article-title":"Differential agglutination of normal and sensitized sheep erythrocytes by sera of patients","volume-title":"with rheumatoid arthritis. Proc Soc Exp Biol Med 1948","volume":"68","unstructured":"Rose H M, Ragan C, Pearce E, Lipman M 0. Differential agglutination of normal and sensitized sheep erythrocytes by sera of patients with rheumatoid arthritis. Proc Soc Exp Biol Med 1948; 68: al-6."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1111\/j.1699-0463.1940.tb01475.x","article-title":"On the occurrence of a factor in human serum activating the specific agglutination of sheep blood corpuscles","volume":"17","author":"Waaler, E.","year":"1940","unstructured":"Waaler E. On the occurrence of a factor in human serum activating the specific agglutination of sheep blood corpuscles. Acta Pathologica et Microbiologica Scandinavica 1940; 17: 172-88.","journal-title":"Acta Pathologica et Microbiologica Scandinavica"},{"key":"ref_10","first-page":"331","article-title":"Cross-idiotypic specificity among monoclonal IgM proteins with anti-gamma-globulin activity","volume":"137","author":"G, Kunkel H.; V, Angello; G, Joslin F.; J, Winchester R.; D, Capra J.","year":"1983","unstructured":"Kunkel H G, Angello V, Joslin F G, Winchester R J, Capra J D. Cross-idiotypic specificity among monoclonal IgM proteins with anti-gamma-globulin activity. J Exp Med 1983; 137: 331-42.","journal-title":"J Exp Med"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"128","DOI":"10.1084\/jem.139.1.128","article-title":"Similarities in the light chains of anti-gamma-globulins showing cross-idiotypic specificities","volume":"139","author":"G, Kunkel H.; J, Winchester R.; G, Joslin F.; D, Capra J.","year":"1974","unstructured":"Kunkel H G, Winchester R J, Joslin F G, Capra J D. Similarities in the light chains of anti-gamma-globulins showing cross-idiotypic specificities. J Exp Med 1974; 139: 128-36.","journal-title":"J Exp Med"},{"key":"ref_12","first-page":"813","article-title":"Monomeric (7S) IgM found in the serum of rheumatoid arthritis patients share idiotypes with pentameric","volume":"79","author":"R, Bonagura V.; L, Mendez; N, Agostino; B, Pernis","year":"1987","unstructured":"Bonagura V R, Mendez L, Agostino N, Pernis B. Monomeric (7S) IgM found in the serum of rheumatoid arthritis patients share idiotypes with pentameric (19S) monoclonal rheumatoid factors. J Clin Invest 1987; 79: 813-8.","journal-title":"J Clin Invest; monoclonal rheumatoid factors"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1016\/0022-1759(77)90065-5","article-title":"Use of antibody coated red cells for the sensitive detection of antigens and in rosette tests for cells bearing surface immunoglobulins","volume":"15","author":"R, Ling N.; S, Bishop; R, Jefferis","year":"1977","unstructured":"Ling N R, Bishop S, Jefferis R. Use of antibody coated red cells for the sensitive detection of antigens and in rosette tests for cells bearing surface immunoglobulins. J Immunol Methods 1977; 15: 279-89.","journal-title":"J Immunol Methods"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1016\/0022-1759(82)90029-1","article-title":"ELISA assays for IgM and IgG rheumatoid factors","volume":"55","year":"1982","unstructured":"Faith A, Pontesilli 0, Unger A, Panagyi G S, Johns P. ELISA assays for IgM and IgG rheumatoid factors. J Immunol Methods 1982; 55: 169-77.","journal-title":"J Immunol Methods"},{"key":"ref_15","first-page":"216","article-title":"Naturally occurring low molecular weight IgM in patients with rheumatoid arthritis, systemic lupus erythematosus and macroglobulinemia","volume":"115","author":"Harisdangkul, V.; McDougal, J.; Knapp, M.; L, Christian C.","year":"1975","unstructured":"Harisdangkul V, McDougal J, Knapp M, Christian C L. Naturally occurring low molecular weight IgM in patients with rheumatoid arthritis, systemic lupus erythematosus and macroglobulinemia. I. Purification and immunologic studies. J Immunol 1975; 115: 216-22.","journal-title":"I. Purification and immunologic studies. J Immunol"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1136\/ard.20.3.215","article-title":"Hereditary factors in rheumatoid arthritis and ankylosing spondylitis","volume":"20","author":"deBlecourt J J; A, Polman; deBlecourt-Meindersma T","year":"1961","unstructured":"deBlecourt J J, Polman A, deBlecourt-Meindersma T. Hereditary factors in rheumatoid arthritis and ankylosing spondylitis. Ann Rheum Dis 1961; 20: 215-23.","journal-title":"Ann Rheum Dis"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"88","DOI":"10.7326\/0003-4819-60-1-88","article-title":"Seronegative and seropositive rheumatoid arthritis: clinical and radiological and biochemical differences","volume":"60","author":"H, Bland J.; W, Brown E.","year":"1964","unstructured":"Bland J H, Brown E W. Seronegative and seropositive rheumatoid arthritis: clinical and radiological and biochemical differences. Ann Intern Med 1964; 60: 88-94.","journal-title":"Ann Intern Med"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1111\/j.1399-0039.1979.tb01137.x","article-title":"HLA-Dw4 and rheumatoid arthritis","volume":"13","author":"Thomsen, M.; Morling, N.; Snorrason, E.; Svejgaard, A.; F, Sorenson S.","year":"1979","unstructured":"Thomsen M, Morling N, Snorrason E, Svejgaard A, Sorenson S F. HLA-Dw4 and rheumatoid arthritis. Tissue Antigens 1979; 13: 56-60.","journal-title":"Tissue Antigens"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"309","DOI":"10.1002\/art.1780230307","article-title":"HLA antigens and rheumatoid arthritis-association between HLA-DRw4 positivity and IgM rheumatoid factor production","volume":"23","year":"1980","unstructured":"Doblong J H, Forre 0, Kass E, Thorsby E. HLA antigens and rheumatoid arthritis-association between HLA-DRw4 positivity and IgM rheumatoid factor production. Arthritis Rheum 1980; 23: 309-13.","journal-title":"Arthritis Rheum"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1136\/ard.19.3.209","article-title":"Rheumatoid arthritis with negative serological reaction","volume":"19","author":"J, Dix A.","year":"1960","unstructured":"Dix A J. Rheumatoid arthritis with negative serological reaction. Ann Rheum Dis 1960; 19: 209-27.","journal-title":"Ann Rheum Dis"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1136\/ard.29.3.254","article-title":"Significance of positive tests for rheumatoid factor in the prognosis of rheumatoid arthritis","volume":"29","author":"Cats, A.; M, Hazevoet H.","year":"1970","unstructured":"Cats A, Hazevoet H M. Significance of positive tests for rheumatoid factor in the prognosis of rheumatoid arthritis. Ann Rheum Dis 1970; 29: 254--60.","journal-title":"Ann Rheum Dis"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1136\/ard.20.4.315","article-title":"Research committee of the Empire Rheumatism Council. Gold therapy in rheumatoid arthritis-final report of a multi-centre controlled trial","volume":"20","year":"1961","unstructured":"Research committee of the Empire Rheumatism Council. Gold therapy in rheumatoid arthritis-final report of a multi-centre controlled trial. Ann Rheum Dis 1961; 20: 315-33.","journal-title":"Ann Rheum Dis"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1093\/rheumatology\/17.1.34","article-title":"Factors affecting the development of penicillamine side-effects","volume":"17","author":"F, Corke C.; C, Huskisson E.","year":"1978","unstructured":"Corke C F, Huskisson E C. Factors affecting the development of penicillamine side-effects. Rheumatology and Rehabilitation 1978; 17: 34-7.","journal-title":"Rheumatology and Rehabilitation"},{"key":"ref_24","first-page":"224","article-title":"Laboratory findings in rheumatoid arthritis","volume":"1960","author":"C, Coggeshall H.","unstructured":"Coggeshall H C. Laboratory findings in rheumatoid arthritis. In: Hollander J L, ed. Arthritis and allied conditions. 6th ed. Philadelphia: Lea and Febiger, 1960: 224-32.","edition":"6th ed","journal-title":"Philadelphia: Lea and Febiger; allied conditions"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"503","DOI":"10.1111\/j.1365-3083.1978.tb00484.x","article-title":"Wager 0, Teppo A M. Binding affinity of human autoantibodies: studies of cryoglobulin IgM rheumatoid factors and IgG autoantibodies to albumin","volume":"7","year":"1978","unstructured":"Wager 0, Teppo A M. Binding affinity of human autoantibodies: studies of cryoglobulin IgM rheumatoid factors and IgG autoantibodies to albumin. Scand J Immunol 1978; 7: 503-9.","journal-title":"Scand J Immunol"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"820","DOI":"10.1002\/art.1780210713","article-title":"Relative reactivities of rheumatoid factors in serum and cells","volume":"21","author":"L, Robbins D.; L, Moore T.; A, Carsons D.; H, Vaughan J.","year":"1978","unstructured":"Robbins D L, Moore T L, Carsons D A, Vaughan J H. Relative reactivities of rheumatoid factors in serum and cells. Arthritis Rheum 1978; 21: 820-6.","journal-title":"Arthritis Rheum"},{"key":"ref_27","first-page":"87","article-title":"Enzyme linked (ELISA) immunoabsorbent assay for the detection of hidden 19S rheumatoid factors in juvenile rheumatoid arthritis","volume":"15","author":"L, Moore T.; W, Dorner R.; L, Alexander R.; G, Osborn T.","year":"1988","unstructured":"Moore T L, Dorner R W, Alexander R L, Osborn T G. Enzyme linked (ELISA) immunoabsorbent assay for the detection of hidden 19S rheumatoid factors in juvenile rheumatoid arthritis. J Rheumatol 1988; 15: 87-90.","journal-title":"J Rheumatol"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/S0065-2776(08)60168-6","article-title":"Structure and function of gamma M macroglobulins","volume":"12","author":"Metzger, H.","year":"1968","unstructured":"Metzger H. Structure and function of gamma M macroglobulins. Adv Immunol 1968; 12: 57-116.","journal-title":"Adv Immunol"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1501","DOI":"10.1002\/art.1780241208","article-title":"Serum IgG and IgM rheumatoid factors by solid phase radioimmunoassay","volume":"24","author":"Wernick, R.; J, LoSpalluto J.; W, Fink C.; Ziff, M.","year":"1981","unstructured":"Wernick R, LoSpalluto J J, Fink C W, Ziff M. Serum IgG and IgM rheumatoid factors by solid phase radioimmunoassay. Arthritis Rheum 1981; 24: 1501-11.","journal-title":"Arthritis Rheum"},{"key":"ref_30","first-page":"577","article-title":"Idiotypic networks","author":"A, Bona C.; B, Pernis","year":"1984","unstructured":"Bona C A, Pernis B. Idiotypic networks. In: Paul W E, ed. Fundamental immunology. New York: Raven Press, 1984: 577-92."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"2616","DOI":"10.1073\/pnas.68.10.2616","article-title":"Similar idiotypic specificities in immunoglobulin fractions with different antibody functions or even without detectable antibody function","volume":"68","author":"Oudin, J.; A, Cazenave P.","year":"1971","unstructured":"Oudin J, Cazenave P A. Similar idiotypic specificities in immunoglobulin fractions with different antibody functions or even without detectable antibody function. Proc Natl Acad Sci USA 1971; 68: 2616-20.","journal-title":"Proc Natl Acad Sci USA"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"133","DOI":"10.3109\/03009747309098832","article-title":"Hidden rheumatoid factors in active seronegative rheumatoid arthritis","volume":"2","author":"D, Lindstrom F.","year":"1973","unstructured":"Lindstrom F D. Hidden rheumatoid factors in active seronegative rheumatoid arthritis. Scand J Rheumatol 1973; 2: 133-5.","journal-title":"Scand J Rheumatol"},{"key":"ref_33","first-page":"887","article-title":"The etiology of rheumatoid arthritis","volume-title":"Textbook of rheumatology","author":"C, Bennett J.","year":"1981","unstructured":"Bennett J C. The etiology of rheumatoid arthritis. In: Kelley W N, Harris E D, Ruddy S, Sledge C B, eds. Textbook of rheumatology. 1st ed. Philadelphia: Saunders, 1981: 887-95.","edition":"1st ed"},{"issue":"56","key":"ref_34","first-page":"1","article-title":"Current status of the rheumatoid factor","volume":"1962","author":"H, Vaughan J.; P, Butler V.","unstructured":"Vaughan J H, Butler V P. Current status of the rheumatoid factor. Ann Intern Med 1962; 56: 1-11.","journal-title":"Ann Intern Med"},{"key":"ref_35","first-page":"265","article-title":"The immunopathology of joint inflammation in rheumatoid arthritis. In: Advances in immunology","author":"Zvaifler, W.","year":"1973","unstructured":"Zvaifler W. The immunopathology of joint inflammation in rheumatoid arthritis. In: Advances in immunology. New York: Academic Press, 1973: 265-336."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1111\/j.1365-3083.1972.tb01813.x","article-title":"Complement fixing intracellular complexes of IgG rheumatoid factor in rheumatoid plasma cells","volume":"1","author":"Munthe, E.; B, Natvig J.","year":"1972","unstructured":"Munthe E, Natvig J B. Complement fixing intracellular complexes of IgG rheumatoid factor in rheumatoid plasma cells. Scand J Immunol 1972; 1: 217-29.","journal-title":"Scand J Immunol"},{"key":"ref_37","first-page":"1215","article-title":"Rheumatoid factor and the pathogenesis of rheumatoid arthritis","volume":"120","author":"C, Mellors R.; A, Nowoslawski; L, Korngold; L, Sengson B.","year":"1960","unstructured":"Mellors R C, Nowoslawski A, Korngold L, Sengson B L. Rheumatoid factor and the pathogenesis of rheumatoid arthritis. J Exp Med 1960; 120: 1215-29.","journal-title":"J Exp Med"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1084\/jem.154.1.112","article-title":"Studies on the antigenic determinants in the self-association of IgG rheumatoid factor","volume":"154","author":"A, Nardella F.; C, Teller D.; M, Mannik","year":"1981","unstructured":"Nardella F A, Teller D C, Mannik M. Studies on the antigenic determinants in the self-association of IgG rheumatoid factor. J Exp Med 1981; 154: 112-25.","journal-title":"J Exp Med"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"452","DOI":"10.1038\/316452a0","article-title":"Association of rheumatoid arthritis and primary osteoarthritis with changes in glycosylation pattern of total serum IgG","volume":"316","author":"B, Parekh R.; A, Dwek R.; J, Sutton B.","year":"1985","unstructured":"Parekh R B, Dwek R A, Sutton B J, et al. Association of rheumatoid arthritis and primary osteoarthritis with changes in glycosylation pattern of total serum IgG. Nature 1985; 316: 452-7.","journal-title":"Nature"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/0049-0172(86)90038-7","article-title":"Infectious agents in the pathogenesis of rheumatoid arthritis","volume":"16","author":"E, Phillips P.","year":"1986","unstructured":"Phillips P E. Infectious agents in the pathogenesis of rheumatoid arthritis. Semin Arthritis Rheum 1986; 16: 1-10.","journal-title":"Semin Arthritis Rheum"}],"container-title":["Annals of the Rheumatic Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S000349672410920X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S000349672410920X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/ard.48.6.488","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,31]],"date-time":"2025-01-31T06:17:03Z","timestamp":1738304223000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S000349672410920X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1989,6]]},"references-count":40,"journal-issue":{"issue":"6","published-print":{"date-parts":[[1989,6]]}},"alternative-id":["S000349672410920X"],"URL":"https:\/\/doi.org\/10.1136\/ard.48.6.488","relation":{},"ISSN":["0003-4967"],"issn-type":[{"type":"print","value":"0003-4967"}],"subject":[],"published":{"date-parts":[[1989,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Seronegative rheumatoid arthritis, rheumatoid factor cross reactive idiotype expression, and hidden rheumatoid factors.","name":"articletitle","label":"Article Title"},{"value":"Annals of the Rheumatic Diseases","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1136\/ard.48.6.488","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 1989 \u00a9 THE AUTHORS. Published by Elsevier B.V. on behalf of European Alliance of Associations for Rheumatology, EULAR. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}]}}