1. Center for Geriatrics and GerontologyKaohsiung Veterans General Hospital Kaohsiung Taiwan
2. Aging and Health Research CenterNational Yang Ming University Taipei Taiwan
3. Department of Geriatric MedicineNational Yang Ming University School of Medicine Taipei Taiwan
4. Chia Nan University of Pharmacy and Science
5. Center for Geriatrics and Gerontology, Taipei Veterans General Hospital Taipei Taiwan
6. Division of Neurology, Department of Medicine, Kaohsiung Veterans General Hospital Kaohsiung Taiwan
7. Department of Psychiatry, Kaohsiung Veterans General Hospital Kaohsiung Taiwan
8. Department of Orthopedics, Kaohsiung Veterans General Hospital Kaohsiung Taiwan