1. Department of Psychiatry, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea.
2. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea.
3. Department of Psychiatry, Naju National Hospital, Naju, Korea.
4. Department of Psychiatry, College of Medicine, Chung-Ang University, Seoul, Korea.
5. Department of Psychiatry, Chosun University Hospital, College of Medicine, Chosun University, Gwangju, Korea.
6. Department of Psychiatry, Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan, Korea.
7. Department of Psychiatry, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Korea.
8. Department of Psychiatry, Haeundae Paik Hospital, College of Medicine, Inje University, Busan, Korea.
9. Department of Psychiatry, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea.
10. Department of Psychiatry, Keyo Hospital, Uiwang, Korea.
11. Department of Psychiatry, Jeju National University Hospital, Jeju National University College of Medicine, Jeju, Korea.
12. Department of Psychiatry, Hallym University Sacred Heart Hospital, College of Medicine, Hallym University, Anyang, Korea.