[Ways of developing the hygiene of physical training of children and adolescents in the USSR].
D000293:Adolescent; D002648:Child; D049673:History, 20th Century; D006801:Humans; D010806:Physical Education and Training / Q000266:history*; D014586:USSR
Puti razvitiia gigieny fizicheskogo vospitaniia deteĭ i podrostkov v SSSR.