1 Department of Health Care Management, College of Management, Chang Gung University, Taoyuan, Taiwan. Electronic address: clli@mail.cgu.edu.tw.
2 Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.
3 School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.
4 University of Sydney School of Public Health, Faculty of Medicine and Health, New South Wales, Australia.