PHYSICIAN VISITS; INTERVAL OF VISITS AND CHILDREN'S ROUTINE CHECKUP UNITED STATES-JULY 1963 - JUNE 1964.
D000293:Adolescent; D002648:Child; D005853:Geriatrics; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010372:Pediatrics; D010808:Physical Examination; D010820:Physicians; D013223:Statistics as Topic; D014481:United States
ADOLESCENCE; CHILD; GERIATRICS; INFANT; INFANT, NEWBORN; PEDIATRICS; PHYSICIANS; STATISTICS; UNITED STATES