Affiliation: | 1. Department of Medical Oncology, Chang Gung Memorial Hospital at LinKou, Tao‐Yuan, Taiwan, Republic of China;2. Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taiwan, Republic of China;3. Department of Otolaryngology, Head and Neck Surgery, Chang Gung Memorial Hospital at LinKou, Tao‐Yuan, Taiwan, Republic of China;4. Department of Medical Oncology, Chang Gung Memorial Hospital at Chiayi, Taipei, Taiwan, Republic of China;5. Department of Radiation Oncology, Chang Gung Memorial Hospital at Chiayi, Taiwan, Republic of China;6. Department of Radiology, Chang Gung Memorial Hospital at Kaoshiung, Taiwan, Republic of China;7. Department of Medical Oncology, Chang Gung Memorial Hospital at Keelung, Taiwan, Republic of China;8. Department of Surgery, Chang Gung Memorial Hospital at LinKou, Tao‐Yuan, Taiwan, Republic of China |