Department of Otolaryngology, Head and Neck Surgery, Stanford University, Palo Alto, California

Address correspondence and reprint requests to Peter Luke Santa Maria, M.B.B.S., Ph.D., Department of Otolaryngology - Head & Neck Surgery, 801 Welch Road, Palo Alto, CA 94304, USA; E-mail: [email protected]

The authors disclose no conflicts of interest.