title: The incompetent palatopharynegeal sphincter. President's address.
mesh_terms: D000367:Age Factors; D002971:Cleft Lip / Q000601:surgery*; D002972:Cleft Palate / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D004724:Endoscopy; D006801:Humans; D010159:Palate / Q000033:anatomy & histology / Q000601:surgery; D010614:Pharynx / Q000473:pathology / Q000601:surgery; D013064:Speech Disorders / Q000175:diagnosis / Q000209:etiology