1. Length of life and cause of death in rheumatoid arthritis;Cobb, S.; Anderson, F.; Bauer, W.;N Engl J Med,1953
2. Course and prognosis in rheumatoid arthritis;R, Duthie J.J.; E, Brown P.; H, Truelove L.; D, Baragar F.; J, Lawrie A.;Ann Rheum Dis,1964
3. Survivorship and death in rheumatoid arthritis;Uddin, J.; S, Kraus A.; G, Kelly H.;Arthritis Rheum,1970
4. Mortality among arthritics;R, Monson R.; P, Hall A.;J Chronic Dis,1976
5. Cause of death in patients with rheumatoid arthritis with particular reference to azathioprine;Lewis, P.; L, Hazleman B.; Hanka, R.; Roberts, S.;Ann Rheum Dis,1980