1. Department of Geriatrics and Gerontology National Taiwan University Hospital Taipei Taiwan
2. Department of Family Medicine College of Medicine National Taiwan University Taipei Taiwan
3. Department of Medical Research National Taiwan University Hospital Taipei Taiwan
4. Department of Family Medicine National Taiwan University Hospital Taipei Taiwan
5. Division of Geriatric Research Institute of Population Health Science National Health Research Institutes Zhunan Taiwan
6. Center for Complementary and Integrated Medicine National Taiwan University Hospital Taipei Taiwan