1. Department of Psychiatry, Naju National Hospital, Naju, Korea
2. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea
3. Department of Psychiatry, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
4. Department of Psychiatry, Daegu Catholic University School of Medicine, Daegu, Korea
5. Department of Psychiatry, Keyo Hospital, Keyo Medical Foundation, Uiwang, Korea
6. Department of Psychiatry, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
7. Department of Psychiatry, College of Medicine, Jeju National University, Jeju, Korea
8. Department of Psychiatry, Soonchunhyang University Gumi Hospital, Soonchunhyang University College of Medicine, Gumi, Korea
9. Department of Psychiatry, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
10. Department of Psychiatry, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
11. Department of Psychiatry, Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan,Korea
12. Department of Psychiatry, Shinsegae Hyo Hospital, Gimje, Korea
13. Department of Psychiatry, Cancer Center, Dongnam Institute of Radiological and Medical Sciences, Busan, Korea
14. Department of Psychiatry, Dongguk University College of Medicine, Gyeongju, Korea
15. Department of Psychiatry, Bongseng Memorial Hospital, Busan, Korea