Ferri Gian Gaetano, Savastio Gabriella, Modugno Giovanni Carlo
Department of Surgical and Anesthesiological Sciences, Ear Nose and Throat Clinic, S. Orsola-Malpighi University Hospital, Bologna, Italy.
Otol Neurotol. 2004 Nov;25(6):1027-8. doi: 10.1097/00129492-200411000-00028.