[1] Univ Illinois, Chicago Inst Voice Care, Dept Otolaryngol Head & Neck Surg, Chicago, IL USA
[2] Univ Illinois, Dept Otolaryngol Head & Neck Surg, Chicago, IL USA
[3] Univ Mons UMONS, UMONS Res Inst Hlth Sci & Technol, Dept Otolaryngol & Head & Neck Surg, EpiCURA Hosp,Div Laryngol & Broncho esophagol, Ave Champ Mars 6, B-7000 Mons, Belgium
[4] CHU St Pierre, Dept Otolaryngol Head & Neck Surg, Brussels, Belgium
[5] Elsan Polyclin Poitiers, Poitiers, France
[6] Res Comm Young Otolaryngologists Int Federat Otorh, Paris, France