Undifferentiated arthritis and spondylarthropathy as a challenge for prospective follow-up

Prospective study of the early course of rheumatoid arthritis in young adults: Comparison of patients with and without rheumatoid factor positivity at entry and identification of variables correlating with outcome

Alfonse T. Masi, José A. Maldonado‐Cocco, Stanley B. Kaplan et al. · Seminars in Arthritis and Rheumatism · 1976 · 144 citations

Rheumatoid Disorder, Rheumatology, Epidemiology +9

Prognosis of Inflammatory Joint Diseases: A Three-year Follow-up Study

M. Nissilä, H Isomäki, K. Kaarela et al. · Scandinavian Journal of Rheumatology · 1983 · 105 citations

Incidence of Inflammatory Rheumatic Diseases in Finland

H Isomäki, J. Raunio, R. von Essen et al. · Scandinavian Journal of Rheumatology · 1978 · 81 citations

Definite Rheumatoid Arthritis, Dermatology, Psoriatic Arthritis +17

HLA B27 related ‘unclassifiable’ seronegative spondyloarthropathies.

Smita Prakash, N. K. Mehra, S. Bhargava et al. · Annals of the Rheumatic Diseases · 1983 · 44 citations · Full text

Benign Polyarthritis

J. S. Lawrence, Peter H. Bennett · Annals of the Rheumatic Diseases · 1960 · 43 citations · Full text