[The incidence of oligophrenia among children and their need for specialized assistance].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000453:epidemiology / Q000628:therapy; D008297:Male; D013038:Specialization; D014586:USSR
O rasprostranennosti u deteĭ oligofrenii i potrebnosti ikh v spetsializirovannoĭ pomoshchi.