1. Ackerknecht, E. (1968) A Short History of Medicine. xiii. Ronald Press, New York
2. Ader, R., Cohen, N. and Felten, D. L. (1987) Brain, behavior, and immunity (editorial). Brain, Behavior and Immunity 1, 1–6
3. Tuberculosis: commentary on a re-emergent killer;Bloom;Science,1992
4. Butterfield, H. J. (1965) The Origins of Modern Science, 1300–1800. p. 7, et passim. Free Press, New York
5. Cartwright, F. F. (1977) A Social History of Medicine. p. 142 ff. Longman, London