title: Observations on hearing levels of preschool cleft-palate children.
mesh_terms: D001299:Audiometry; D002648:Child; D002675:Child, Preschool; D002972:Cleft Palate / Q000150:complications*; D003638:Deafness / Q000175:diagnosis* / Q000517:prevention & control; D006266:Health Education; D006801:Humans; D010033:Otitis Media / Q000175:diagnosis* / Q000517:prevention & control; D011446:Prospective Studies