1. Department of Nursing, Mackay Memorial Hospital, New Taipei City 251020, Taiwan
2. School of Nursing, College of Medicine, National Taiwan University, Taipei 106335, Taiwan
3. School of Nursing, Graduate Institute of Nursing, China Medical University, Taichung 406040, Taiwan
4. Nursing Department, China Medical University Hospital, Taichung 404327, Taiwan
5. Department of Nursing, National Taiwan University Hospital, Taipei 100229, Taiwan