[Retrospective serological examination of the population in leptospirosis foci].
D006386:Hemagglutination Tests; D006801:Humans; D007922:Leptospirosis / Q000453:epidemiology*; D008875:Middle Aged; D012189:Retrospective Studies; D012426:Russia
Opyt retrospektivnogo serologicheskogo obsledovaniia naseleniia v ochagakh leptospirozov.