1. Department of Nursing, College of Medicine; National Cheng Kung University; Tainan Taiwan
2. College of Nursing and Health Sciences; University of Texas at Tyler; Tyler Texas
3. Department of Obstetrics and Gynecology, National Cheng Kung University Hospital; College of Medicine, National Cheng Kung University; Tainan Taiwan
4. Department of Physical Therapy, College of Medicine; National Cheng Kung University; Tainan Taiwan
5. Department of Statistics, College of Management; National Cheng Kung University; Tainan Taiwan