1. Department of Nursing; Chang Gung University of Science and Technology; Taoyuan Taiwan
2. Head and Neck Oncology Group, Chang Gung Medical Foundation; Chang Gung Memorial Hospital at LinKou; Taoyuan Taiwan
3. School of Nursing, College of Medicine; National Taiwan University; Taipei Taiwan
4. Department of Otorhinolaryngology, Head and Neck Surgery, Chang Gung Medical Foundation; Chang Gung Memorial Hospital at LinKou; Taoyuan Taiwan
5. College of Medicine; Chang Gung University; Taoyuan Taiwan
6. Department of Radiation Oncology, Chang Gung Medical Foundation; Chang Gung Memorial Hospital at LinKou; Taoyuan Taiwan
7. Graduate Institute of Clinical Medicine; Chang Gung University; Taoyuan Taiwan