300,414 PROGRAM Program and abstracts of the 40th Annual Meeting of the American Society of Tropical Medicine and Hygiene, the Boston Sherton Boston, Massachusetts December 1-5, 1991. - [McLean] : The American Society of Tropical Medicine and Hygiene, 1991. - [1], 320, [2] s. ; 26 cm (The American Journal of Tropical Medicine and Hygiene ; vol. 45, nr 3, suppl.)