C CALDERON, H CELIS, R PINTADO. Show Affiliations »
Abstract
Entities: Species
Keywords: SMALLPOX/epidemiology and statistics
Mesh: See more » BiometryMexicoSmallpox/epidemiologySmallpox/statistics & numerical dataVariola virus
Year: 1952 PMID: 14953981
Source DB: PubMed Journal: Bol Oficina Sanit Panam ISSN: 0030-0632