1. Abel Smith, B. (1968). Proceedings of seminar on health economics. W.H.O. (Moscow).
2. Abrams, N. R. (1960). Etiology and pathogenesis of osteoarthritis. In Arthritis, edited by J. L. Hollander, 6th ed., pp. 811-829, Kimpton, tondon.
3. Social class gradients and serum uric acid in males and females;Acheson, R.M.;Brit. med. J,1969
4. Translation: The Genuine Works of Hippocrates;Adams, F.,1886
5. Rheumatism in industry;Anderson, J.A.D.,1964