[THE OBJECT AND TASKS OF CHILD AND ADOLESCENT HYGIENE].
D000293:Adolescent; D002648:Child; D002669:Child Welfare; D003604:Czechoslovakia; D006801:Humans; D006920:Hygiene; D013222:State Medicine; D014937:Work
ADOLESCENCE; CHILD; CHILD WELFARE; CZECHOSLOVAKIA; HYGIENE; STATE MEDICINE
P REDM ET A 'UKOLY HYGIENY D ET'I A DOROSTU.