1. Department of Psychiatry, Inha University School of Medicine, Inha University Hospital, Incheon, Korea.
2. Department of Psychiatry, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, Korea.
3. Department of Psychiatry, Dongguk University College of Medicine, Ilsan Hospital, Goyang, Korea.
4. Department of Psychiatry, Chonnam National University College of Medicine, Chonnam National University Hospital, Gwangju, Korea.
5. Department of Psychiatry, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.
6. Department of Psychiatry, Seoul National Hospital, Seoul, Korea.
7. Department of Psychiatry, The Catholic University of Korea College of Medicine, St. Vincent's Hospital, Suwon, Korea.
8. Department of Psychiatry, Kyunghee University School of Medicine, Kyunghee University Medical Center, Seoul, Korea.
9. Department of Psychiatry, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, Seoul, Korea.
10. Department of Psychiatry, Chung-Ang University College of Medicine, Chung-Ang University Hospital, Seoul, Korea.
11. Department of Psychiatry, Yonsei University Wonju College of Medicine, Wonju Christian Hospital, Wonju, Korea.