AAFP age charts for periodic health examinations: 19 months to six years.
D002648:Child; D002662:Child Health Services / Q000592:standards*; D002675:Child, Preschool; D005194:Family Practice / Q000592:standards; D006266:Health Education / Q000592:standards; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D010808:Physical Examination; D012955:Societies, Medical; D014481:United States