1. Department of Psychiatry, Maeumsarang Hospital, Wanju, Korea
2. Department of Psychiatry, Yeungnam University, Gyeongsan, Korea
3. Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
4. Department of Psychiatry, Gachon University Gil Medical Center, Gachon University School of Medicine, Incheon, Korea
5. Department of Psychiatry, Konkuk University School of Medicine, Cheongju, Korea
6. Department of Psychiatry, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
7. Department of Psychiatry, CHA Bundang Medical Center, CHA University, Seongnam, Korea
8. Department of Psychiatry, Kyoungpook National University School of Medicine, Daegu, Korea
9. Department of Psychiatry, Inje University Ilsan Paik Hospital, Goyang, Korea
10. Department of Psychiatry, Hallym University Sacred Heart Hospital, Anyang, Korea
11. Department of Psychiatry, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
12. Department of Psychiatry, Chonbuk National University Hospital, Jeonju, Korea
13. Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea