Siow Jin Keat, Al Kadah Basel, Werner Jochen A
Department of Otorhinolaryngology, Tan Tock Seng Hospital, National University of Singapore, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore.
Eur Arch Otorhinolaryngol. 2008 May;265(5):509-11. doi: 10.1007/s00405-008-0605-0. Epub 2008 Feb 26.