1. Department of Family Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
2. College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3. Department of Post‐Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
4. School of Medicine, Chung Shan Medical University, Taichung, Taiwan
5. Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
6. Division of Hospital Medicine, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
7. Institute of Clinical Nursing, College of Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan
8. Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
9. Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
10. Department of Family Medicine, College of Medicine and Hospital, National Taiwan University, Taipei, Taiwan
11. Institute of Community Health Care, College of Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan
12. Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King’s College London, London, United Kingdom