The changing contours of pediatric practice.
Perrin
James M
JM
D000293:Adolescent; D016497:Adolescent Health Services / Q000458:organization & administration; D002648:Child; D002662:Child Health Services / Q000458:organization & administration; D005192:Family Health; D006293:Health Promotion; D006801:Humans; D010372:Pediatrics / Q000193:education / Q000639:trends*