1. From the Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital (Ms Spörri), and the Center for Otology, Skull Base Surgery, Rhinology, and Facial Plastic Surgery, Klinik Hirslanden (Drs Simmen and Briner), Zurich, Switzerland; and the Department of Otorhinolaryngology, University of Nottingham, Nottingham, England (Dr Jones).