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2. Isotype-specific measurement of rheumatoid factor with reference to clinical features of rheumatoid arthritis;Tarkowski, A.; Nilsson, L.-A.;J Clin Lab Immunol,1983
3. IgM rheumatoid factor (RF), IgA RF, IgE RF, and IgG RF detected by ELISA in rheumatoid arthritis;Gioud-Paquet, M.; Auvinet, M.; Raffin, T.;Ann Rheum Dis,1987
4. Rheumatoid factors in rheumatoid arthritis and vasculitis;L, Westedt M.; P, Herbrink; L, Molenaar J.;Rheumatol Int,1985
5. IgG rheumatoid factor. Relationship to seropositive rheumatoid arthritis and absence in seronegative disorders;M, Pope R.; J, McDuffy S.;Arthritis Rheum,1979