1. Department of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
2. Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
3. School of Nursing, University at Buffalo, The State University of New York, New York, NY 14214, USA
4. College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan