1. Department of Nursing; Chang Gung Memorial Hospital; Linkou Taiwan
2. College of Nursing; National Taipei University of Nursing and Health Sciences; Taipei Taiwan
3. Department of OB/GYN; Chang Gung Memorial Hospital; Linkou Taiwan
4. College of Medicine; Chang Gung University; Taoyuan
5. College of Nursing; Chang Gung Memorial Hospital; Keelung Taiwan
6. Department of Nursing; Chang Gung University Memorial Hospital; Keelung Taiwan