1. Larsen, A., Petersson, I., Svensson, B. Podophyllum derivatives (CPH82) compared with placebo in the treatment of rheumatoid arthritis. Br J Rheumatol 1989, 28, 124–127.
2. Rantapää Dahlqvist, S., Norberg, B., Sondell, K., Nordenson, I., Holmgren, G. The effect of CPH82 on the growth of human lymphocytes in vitro. Definition of cytobiological action. Br J Rheumatol 1989, 28, 418–421.
3. Ropes, M.W., Bennett, G.A., Cobb, S., Jacox, R., Jessar, R.A. 1958 revision of diagnostic criteria for rheumatoid arthritis. Bull Rheum Dis 1958, 9, 175–176.
4. Ritchie, D.M., Boyle, J.A., McInnes, J.M., Jasani, M.K., Dalakos, T.G., Grievson, P., Buchanan, W.W. Clinical studies with an articular index for the patients with rheumatoid arthritis. Q J Med 1968, 37, 393–406.
5. Thomson, P.W., Silman, A.J., Kirwan, J.R., Currey, H.L.F. Articular indices of joint inflammation in rheumatoid arthritis. Arthritis Rheum 1987, 30, 618–623.