Validation of new classification criteria of rheumatoid arthritis in an international multicentre study
Li R, Sun X, Ye H, Liu J, Zhao J, Liu X, Mei Y, Zhang Z, Guo J, Bi L, Liu X, Wang G, Liu J, Leng X, Gu F, Sun L, Zou Q, Fang Y, Jiang Q, Chatzidionysiou K, Priya S, Janardana R, Nair A, Catrina AI, Danda D, Li ZG