1. Department of Medical Research, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation , Dalin, 62247 Chiayi , Taiwan
2. Center for Quality Management, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation , Dalin, 62247 Chiayi , Taiwan
3. School of Nursing , College of Medicine, , Taoyuan City, 33302 , Taiwan
4. Chang Gung University , College of Medicine, , Taoyuan City, 33302 , Taiwan
5. Nursing Department, Chang Gung Memorial Hospital , Linkou Branch, Taoyuan City, 33302 , Taiwan
6. Department of Nursing, Tzu Chi University of Science and Technology , Hualien City, 970302 , Taiwan
7. Dalla Lana School of Public Health, University of Toronto , Toronto, ON, M5T 3M7 , Canada