1. Department of Oral and Maxillofacial Surgery, MacKay Memorial Hospital, Taipei, Taiwan
2. Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
3. Institute of Oral Biology and Department of Dentistry, School of Dentistry, National Yang-Ming University, Taipei, Taiwan
4. Mackay College of Medicine, Nursing and Management, Taipei, Taiwan
5. Department of Stomatology, Taipei Veterans General Hospital, Taipei, Taiwan