[Improvement of health care of infants and young children: follow-up of cases referred by child care centers].
D002662:Child Health Services; D002675:Child, Preschool; D002658:Developmental Disabilities / Q000175:diagnosis*; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007564:Japan; D012017:Referral and Consultation