[SEXUAL PROBLEMS IN SCHOOLS OF VARIOUS GRADES].
D000293:Adolescent; D002648:Child; D006801:Humans; D012572:School Health Services; D012574:Schools; D012736:Sex Education; D012725:Sexual Behavior
ADOLESCENCE; CHILD; SCHOOL HEALTH; SEX BEHAVIOR; SEX EDUCATION
PROBLEMI SESSUALI NELLE SCUOLE DI VARIO GRADO.