1. Graduate Institute of Health Care, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
2. Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei 10610, Taiwan
3. Department of Public Health, School of Medicine, Fu-Jen Catholic University, Taipei 24205, Taiwan
4. Department of Medical Research and Education, Cheng-Hsin General Hospital, Taipei 11220, Taiwan