[PERMANENT "TYMPANIC DRAINAGE" IN SEVERE OBSTRUCTION OF TUBAL VENTILATION].
D003141:Communicable Diseases; D004322:Drainage; D005064:Eustachian Tube; D006801:Humans; D010033:Otitis Media; D013492:Suppuration
DRAINAGE; EUSTACHIAN TUBE; OTITIS MEDIA; SUPPURATION
PERMANENTE "TYMPANODRAINAGE" BEI SCHWERER VERHINDERUNG DER TUBENVENTILATION.