1. Department of Child and Adolescent Psychiatry, Chang Gung Memorial Hospital, Kaohsiung Medical Center and College of Medicine, Chang Gung University, Kaohsiung, Taiwan
2. Department of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
3. Department of Psychiatry, School of Medicine, and Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
4. School of Nursing, The State University of New York, University at Buffalo, Buffalo, NY, USA
5. Department of Psychiatry, Tainan Municipal Hospital, Tainan, Taiwan