1. Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
2. College of Medicine, National Taiwan University, Taipei, Taiwan
3. Centre for Addiction and Mental Health, Toronto, ON, Canada
4. Department of Psychiatry, University of Toronto, Toronto, ON, Canada
5. Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
6. Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL