[RESEARCH IN CHILD AND ADOLESCENT HYGIENE IN THE USSR].
D000293:Adolescent; D002648:Child; D006801:Humans; D006920:Hygiene; D012106:Research; D014586:USSR
ADOLESCENCE; CHILD; HYGIENE; RESEARCH; USSR
K V'YZKUMU V HYGIEN E D ET'I A DOROSTU V SSSR.