1. Department of Nursing, MacKay Memorial Hospital, Hsinchu City, Taiwan R.O.C
2. Department of Internal Medicine, MacKay Memorial Hospital, Hsinchu City, Taiwan R.O.C
3. Department of Medical Research, Tri-Service General Hospital and school of Public Health, National Defense Medical Center, Taipei City, Taiwan R.O.C
4. Department of Nursing, Chang Gung University of Science and Technology, Taoyuan City, Taiwan R.O.C
5. Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan R.O.C