1. Department of Psychiatry, Depression Center Samsung Medical Center, Sungkyunkwan University School of Medicine Seoul South Korea
2. Korea Psychological Autopsy Center (KPAC) Seoul South Korea
3. Research Institute for Future Medicine Samsung Medical Center Seoul South Korea
4. Department of Social and Preventive Medicine Sungkyunkwan University School of Medicine Seoul South Korea
5. Department of Health Sciences & Technology, Department of Medical Device Management & Research, and Department of Clinical Research Design & Evaluation Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University Seoul South Korea