1. Department of Otolaryngology—Head and Neck Surgery Chang Gung Memorial Hospital Taoyuan Taiwan
2. Unit of Otorhinolaryngology and Head and Neck Surgery IRCCS Ospedale Policlinico San Martino Genoa Italy
3. Department of Surgical Sciences and Integrated Diagnostics University of Genoa Genoa Italy
4. Department of Plastic and Reconstructive Surgery Chang Gung Memorial Hospital Taoyuan Taiwan
5. Department of Pathology Chang Gung Memorial Hospital Taoyuan Taiwan
6. College of Medicine Chang Gung University Taoyuan Taiwan