1. Department of Psychiatry, National Health Insurance Service Ilsan Hospital, Goyang, Korea
2. Suicide and School Mental Health Institute, Anyang, Korea
3. Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Korea
4. Yonsei University Interdisciplinary Graduate Program in Social Welfare Policy, Seoul, Korea
5. Department of Psychiatry, Hallym University Sacred Heart Hospital, Anyang, Korea
6. Department of Psychiatry, Kyung Hee University School of Medicine, Seoul, Korea
7. Department of Psychiatry, Bundang CHA Hospital, School of Medicine, CHA University, Seongnam, Korea
8. Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea