1. Int;ABE, M.; CHINONE, S.; HIRAKO, T.;J. Leprosy; Rheumatoid-factor-like substance and antistreptolysin 0 antibody in leprosy serum,1967
2. Amer;ADLER, E.; ABRAMSON, J.H.; GOLDBERG, R.; ELKAN, Z.; HADOR, B.E.N.; S.;J. Epid; Rheumatoid arthritis in a Jerusalem population: 2. Epidemiology of rheumatoid factors,1967
3. ANDERSON, I. F. (1971) S. Afr. med. J., 45, 1032 (Rheumatoid arthritis in the Bantu)
4. (Distribution of rheumatoid factor activity in nonrheumatoid states);BARTFELD, H.;Acad. Sci,1969
5. (Influence of genetic and environmental factors on the occurrence of rheumatoid arthritis and rheumatoid factor in American Indians);BUNIM, J.J.; BURCH, T.A.; O'BRIEN, W.M.;Bull. rheum. Dis,1964