[1] Cathay Gen Hosp, Dept Otolaryngol, 280 Jen Ai Rd, Taipei 106, Taiwan
[2] Fu Jen Catholic Univ, Sch Med, New Taipei, Taiwan
[3] Natl Taiwan Univ Hosp, Dept Otolaryngol, Taipei, Taiwan
[4] Taipei Med Univ, Coll Pharm, Sch Pharm, Dept Clin Pharm, Taipei, Taiwan
[5] Taipei Med Univ, Coll Pharm, Res Ctr Pharmacoecon, Taipei, Taiwan
[6] Natl Taiwan Univ Hosp, Dept Med Res, Hsin Chu Branch, Hsinchu, Taiwan
[7] Natl Taiwan Univ Hosp, Hearing & Speech Ctr, Taipei, Taiwan
[8] Chung Shan Med Univ, Dept Speech Language Pathol & Audiol, Taichung, Taiwan
[9] China Med Univ, China Med Univ Hosp, Dept Med Res, Taichung, Taiwan