1. Department of Radiation Oncology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
2. Department of Oral Pathology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
3. Department of Oral and Maxillofacial Surgery; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
4. Department of Radiation Oncology; Faculty of Medicine; College of Medicine; Kaohsiung Medical University; Kaohsiung Taiwan