Experiences with early closure of velum and later closure of hard palate.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002972:Cleft Palate / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D010159:Palate; D013064:Speech Disorders / Q000517:prevention & control