Some observations on pediatrics: Its past, present, and future.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003365:Costs and Cost Analysis; D003695:Delivery of Health Care / Q000191:economics / Q000639:trends; D005544:Forecasting; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D010372:Pediatrics / Q000191:economics / Q000639:trends; D010817:Physician-Patient Relations; D012955:Societies, Medical; D014481:United States