TY - JOUR AU - Mishiro, Y; Sakagami, M; Kondoh, K; Kitahara, T; Kakutani, C TI - Long-term outcomes after tympanoplasty with and without mastoidectomy for perforated chronic otitis media JO - Eur Arch Otorhinolaryngol IS - 06 VL - 266 PY - 2009 DO - 10.1007/s00405-008-0816-4 L3 - PubMed-ID: 18807057 SP - 819 EP - 822 ER -