The value of selective pre-school medicals in an inner city area.
D000488:Allied Health Personnel; D002662:Child Health Services / Q000458:organization & administration*; D002675:Child, Preschool; D006262:Health; D006306:Health Surveys; D006801:Humans; D007223:Infant; D008131:London; D010808:Physical Examination; D014504:Urban Health