1. Department of Radiation Oncology, China Medical University Hospital, Taichung 40402, Taiwan
2. School of Medicine, College of Medicine, China Medical University, Taichung 40402, Taiwan
3. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung 40402, Taiwan
4. Ph.D. Program for Health Science and Industry, College of Health Care, China Medical University, Taichung 40402, Taiwan