1. Department of Nursing; Mackay Memorial Hospital; New Taipei City Taiwan
2. School of Nursing; Mackay Medical College; New Taipei City Taiwan
3. Graduate Institute of Clinical Medical Sciences; Chang Gung University; Tao-Yuan Taiwan
4. School of Nursing; Chang Gung University; Tao-Yuan Taiwan
5. Department of Nursing; Chang Gung Memorial Hospital at Keelung; Keelung Taiwan