1. Department of Psychiatry, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
2. Department of Psychiatry, Catholic University of Daegu College of Medicine, Daegu, Korea
3. Department of Psychiatry, Naju National Hospital, Naju, Korea
4. Department of Psychiatry, Konkuk University School of Medicine, Chungju, Korea
5. Department of Psychology, Chungbuk National University, Cheongju, Korea
6. Department of Psychiatry, CHA University, Gumi, Korea
7. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea
8. Department of Psychiatry, Bongseng Memorial Hospital, Busan, Korea
9. Department of Psychiatry, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea