1. 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;Masi,1976
2. Rheumatoid Arthritis, A Definition of the Disease and a Clinical Description Based on a Numerical Study of 293 Patients and Controls;Short,1957
3. Significance of the Waaler-Rose test, streptococcal agglutination, and antistreptolysin titre in the prognosis of rheumatoid arthritis;Otten;Ann Rheum Dis,1959
4. Ten-year follow-up of rheumatoid arthritis;Bywaters;Lancet,1960
5. The clinical features of rheumatoid arthritis;Ragan;JAMA,1962