1. From the University of Michigan School of Medicine, Ann Arbor, Mich (H.W.W.); Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB 754, Nashville, TN 37232 (A.B.N., B.R.C., M.T., E.L.R., M.E.H.); and Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, Calif (Y.J.L., F.M.B.).