Ramirez A L, Johnson J, Murr A H
Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, 400 Parnassus Ave., San Francisco, CA 94131, USA.
Otolaryngol Head Neck Surg. 2001 Dec;125(6):651-3. doi: 10.1067/mhn.2001.120431.