1 Department of Oral and Maxillofacial Surgery, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan.
2 School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.
3 Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan.