Development of vaccines for fertility regulation : papers presented at the WHO sponsored Session of the third International symposium on immunology of reproduction, held in Varna, Bulgaria, on 21-25 September 1975 /

Autor Harper, Michael J. K., 1935-, Jones, Warren R., Ing, R. M. Y., Robin, E. R., Hjort, T., Austin, Colin Russell, 1914-2004, Shivers, C. A., Stevens, V. C., Bohn, H., Tung, K. S. K.
Vydáno 1976

Vaccination & world health : London School of Hygiene & Tropical Medicine Fourth Annual Public Health Forum /

Vydáno 1994