1. Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, Taipei, Taiwan, PR China
2. School of Medicine, National Defense Medical Center, Taipei, Taiwan, PR China
3. Department of Internal Medicine, Tri-Service General Hospital, Tri-Service General Hospital, Taipei, Taiwan, PR China
4. Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, Taipei, Taiwan, PR China
5. Department of Pathology, Tri-Service General Hospital Songshan Branch, Taipei, Taiwan, PR China
6. Department of Biochemistry, National Defense Medical Center, Taiwan, Taiwan, PR China