Radiographic progression in rheumatoid arthritis: a long-term prospective study of 109 patients.
Arthritis Rheum. 1998 Aug;41(8):1470-80. doi: 10.1002/1529-0131(199808)41:8<1470::AID-ART18>3.0.CO;2-V.
Arthritis Rheum. 1998.
PMID: 9704647