[Surgery for prevention of chronic epitympanic suppuration of the middle ear].
D003560:Cysts; D004432:Ear, Middle; D006801:Humans; D010033:Otitis Media / Q000209:etiology*; D013492:Suppuration
EAR, MIDDLE/cysts; OTITIS MEDIA/etiology and pathogenesis
Die Präventivoperation chronischer epitympanaler Mittelohreiterungen.