Vaccination Against Smallpox

Autor: Wildman, John, Yuille, Duncan, Rogerson, Rowland, Wallace, H. J., Atkinson, E. C., Colley, Patricia J., Schar, M.
Zdroj: The British Medical Journal, 1962 Feb 01. 1(5275), 402-403.
Databáze: JSTOR Journals