1. Department of Psychiatry, Kyung Hee University School of Medicine, Seoul, Korea
2. Department of Psychiatry, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
3. Seoul Brain Research Institute, Seoul, Korea
4. Department of Psychiatry, College of Medicine, Ewha Womans University, Seoul, Korea
5. Department of Research Planning, Mental Health Research Institute, National Center for Mental Health, Seoul, Korea
6. Department of Psychiatry, Myongji Hospital, Hanyang University College of Medicine, Seoul, Korea
7. Department of Psychiatry, Inje University College of Medicine, Seoul, Korea
8. Department of Psychiatry, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Buchun, Korea
9. Department of Psychiatry, Eulji University School of Medicine, Seoul, Korea
10. Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea