[Studies on the epidemiology of malaria in North Vietnam. 4. Division of North Vietnam into malariologic zones].
D006801:Humans; D008288:Malaria / Q000453:epidemiology*; D014744:Vietnam
Issledovaniia po epidemiologii maliarii v Severnom v'etname. 4. Maliariologicheskoe raionirovanie Severnogo V'etnama.