1. School of Nursing, Chang Gung University of Science and Technology, Tao-Yuan City, Taiwan
2. Department of Health Management, IShou University, Kaohsiung City, Taiwan
3. School of Nursing, Chang Gung University, Tao-Yuan City, Taiwan
4. School of Nursing, Taipei Medical University, Taipei, Taiwan
5. Department of Nursing, Linkou Chang Gung Memorial Hospital, Tao-Yuan City, Taiwan
6. Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung, Taiwan