[Questions of school hygiene raised at the 13th All-Union congress of hygienist, epidemiologists, microbiologists and infectionists].
D006801:Humans; D006920:Hygiene; D012574:Schools
SCHOOLS
Voprosy shkol'noi gigieny na XIII Vesesoiuznom s''ezde gigienistov, epidemiologov, mikrobiologov i infektsionistov.