1. Department of Oral Pathology, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan</br>
2. Division of Oral Pathology & Maxillofacial Radiology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan</br>
3. Oral & Maxillofacial Imaging Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan