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- Combination therapy in the treatment of rheumatoid arthritis / edit. Roy D. Altman, Norman L. Gottlieb, David S. Howell. 1993. Vol. 23, No. 2, Suppl. 1 - Philadelphia : Saunders, 1993 - 91 s.(Seminars in Arthritis and Rheumatism; Suppl. 1) [1, currently available 0, at library only 1]
- Chapters, articles