Surgery for congenital conductive deafness.
D002675:Child, Preschool; D003638:Deafness / Q000151:congenital* / Q000601:surgery; D004431:Ear, External / Q000002:abnormalities / Q000601:surgery*; D004432:Ear, Middle / Q000002:abnormalities / Q000601:surgery*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011183:Postoperative Complications; D013997:Time Factors