1. School of Nursing; College of Medicine; Chung Shan Medical University; Taichung Taiwan, Republic of China
2. Department of Nursing; Chung Shan Medical University Hospital; Taichung Taiwan, Republic of China
3. School of Nursing; College of Medicine; Chang Gung University; Kwei-Shan Tao-Yuan Taiwan, Republic of China
4. Department of Nursing; Chang Gung Memorial Hospital; Keelung City Taiwan, Republic of China