1. Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
2. Institute of Public Health, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
3. Department of Medical Education and Research, Taipei Veterans General Hospital Hsinchu Branch, Hsinchu, Taiwan, ROC
4. Department of Pharmacy, Taipei Veterans General Hospital Hsinchu Branch, Hsinchu, Taiwan, ROC
5. School of Medicine, National Tsing Hua University, Hsinchu, Taiwan, ROC
6. School of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
7. Department of Family Medicine, Taipei Veterans General Hospital Hsinchu Branch, Hsinchu, Taiwan, ROC
8. Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
9. Department of Post-Baccalaureate Medicine, National Chung Hsing University, Taichung, Taiwan, ROC
10. Department of Family Medicine, En Chu Kong Hospital, New Taipei City, Taiwan, ROC
11. Department of Family Medicine, National Yang Ming Chiao Tung University, School of Medicine, Taipei, Taiwan, ROC