1. Department of Pediatrics, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
2. Department of Surgery, Taichung Armed Forces General Hospital, Taichung, Taiwan
3. Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
4. Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan