1. Department of Internal Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
2. Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
3. Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
4. Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taoyuan City, Taiwan
5. Department of Stomatology of Periodontology, Mackay Memorial Hospital, Taipei, Taiwan
6. Departments of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
7. John Ochsner Heart and Vascular Institute, Ochsner Clinical School, The University of Queensland School of Medicine, New Orleans, LA, USA