1. Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology–Head & Neck Surgery, Stanford University School of Medicine, Stanford, California
2. Department of Physical and Rehabilitation Medicine, Turku University Hospital, University of Turku, Turku, Finland
3. Division of OtolaryngologyUniversity HospitalHead and Neck Surgery, Department of Surgery, Université de Montréal, Montréal, Québec, Canada