1. Department of Otolaryngology, Centre hospitalier de l’Université de Montréal (CHUM); Hôpital Notre-Dame; Montréal Québec Canada
2. Intermountain ENT; Salt Lake City UT
3. Advanced ENT & Allergy; Louisville KY
4. Central California ENT; Fresno CA
5. Colorado ENT & Allergy; Colorado Springs CO