title: Patients with early arthritis who fulfil the 1987 ACR classification criteria for rheumatoid arthritis but not the 2010 ACR/EULAR criteria.
authors.forename: Se Jin
authors.initials: SJ
authors.lastname: Jung
authors.forename: Sang-Won
authors.initials: SW
authors.lastname: Lee
authors.forename: You Jung
authors.initials: YJ
authors.lastname: Ha
authors.forename: Kwang-Hoon
authors.initials: KH
authors.lastname: Lee
authors.forename: Yoon
authors.initials: Y
authors.lastname: Kang
authors.forename: Min-Chan
authors.initials: MC
authors.lastname: Park
authors.forename: Soo-Kon
authors.initials: SK
authors.lastname: Lee
authors.forename: Yong-Beom
authors.initials: YB
authors.lastname: Park
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000145:classification* / Q000175:diagnosis*; D003953:Diagnosis-Related Groups / Q000639:trends*; D042241:Early Diagnosis; D005060:Europe; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index