[Clinical study on the middle ear malformation (author's transl)].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004431:Ear, External / Q000002:abnormalities; D004432:Ear, Middle / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013223:Statistics as Topic