1 Department of Otolaryngology Head and Neck Surgery, Emory University, 550 Peachtree Street, Medical Office Tower, Suite 1135, Atlanta, GA 30308, USA. Electronic address: achen@emory.edu.
2 Division of Thyroid & Parathyroid Surgery, Department of Otolaryngology-Head and Neck Surgery, Henry Ford Hospital, Detroit, MI 48202, USA. Electronic address: msinger@hfhs.org.