Occlusion effect of the auditory tube in post-operative results of the mastoidectomy surgery - Faidiga, Gabriel Bijos; Lago, Tassiana do; Silveira, Flávia; Carenzi, Lucas R.; Yassuda, Camila C.; Massuda, Eduardo Tanaka; Hyppolito, Miguel Angelo (World Congress of the International Federation of Oto-Rhino-Laryngological Societies, 2009)