The secular trend in the growth and development of children and young persons in the Soviet Union.
D000293:Adolescent; D001824:Body Constitution; D002648:Child; D002675:Child, Preschool; D005260:Female; D006128:Growth; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D013223:Statistics as Topic; D014586:USSR