1. Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
2. Neuroimaging Research Branch, National Institute on Drug Abuse, Intramural Research Programs, National Institutes of Health, Baltimore, MD, USA
3. Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
4. Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
5. Department of Psychology, Asia University, Taichung, Taiwan
6. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
7. Department of Psychiatry, Tainan Hospital, Ministry of Health and Welfare Tainan, Tainan, Taiwan
8. Yanjiao Furen Hospital, Hebei, China