1. Department of Health Care Administration; Oriental Institute of Technology; New Taipei City Taiwan
2. Department of Business Administration; National Taiwan University; Taipei Taiwan
3. Laboratory for Epidemiology Department of Health Care Management; Chang Gung University; Taoyuan Taiwan
4. Healthy Aging Research Center; Chang Gung University; Taoyuan Taiwan
5. Department of Pharmacy; Chang Gung Memorial Hospital; Taoyuan Taiwan