1. Department of Physical Medicine and Rehabilitation Tri‐Service General Hospital Taipei Taiwan, ROC
2. School of Medicine National Defense Medical Center Taipei Taiwan, ROC
3. Department of Nursing Songshan Branch of Tri‐Service General Hospital Taipei Taiwan, ROC
4. Deparment of Nursing Tri‐Service General Hospital Taipei Taiwan
5. Department of Internal Medicine Tri‐Service General Hospital Taipei Taiwan
6. School of Public Health & Graduated Institute of Medical Science National Defense Medical Center Taipei Taiwan, ROC
7. National Center for Geriatrics and Welfare Research National Health Research Institutes Hsinchu Taiwan, ROC
8. School of Nursing & Graduate Institute of Medical Sciences National Defense Medical Center Taipei Taiwan, ROC