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