title: [Study of the virulence and immunogenicity of vaccinal strains of Leishmania major, preserved by freezing in liquid nitrogen].
mesh_terms: D005615:Freezing; D006801:Humans; D007895:Leishmania tropica / Q000276:immunology*; D007896:Leishmaniasis / Q000517:prevention & control*; D014611:Vaccination
vernacular_title: Izuchenie virulentnosti i immunogennosti privivochnykh shtammov Leishmania major, sokhraniaemykh metodom zamorazhivaniia v zhidkom azote.