[1] Univ Minnesota, Dept Otolaryngol Head & Neck Surg, Div Facial Plast & Reconstruct Surg, Phillips Wangensteen Bldg,516 Delaware St SE, Minneapolis, MN 55455 USA
[2] Vanderbilt Univ, Med Ctr, Dept Otolaryngol Head & Neck Surg, Div Facial Plast & Reconstruct Surg, 221 Kirkland Hall, Nashville, TN 37235 USA
[3] Reg Hosp, Dept Plast & Hand Surg, St Paul, MN USA