Chang Christopher Y, Martinu Tereza, Witsell David L
Division of Otolaryngology-Head and Neck Surgery, Department of Internal Medicine, Duke University Medical Center, Durham, NC 27710, USA.
Otolaryngol Head Neck Surg. 2004 Jun;130(6):788-90. doi: 10.1016/S0194-5998(03)01319-6.