1. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea
2. Department of Psychiatry, Naju National Hospital, Naju, Korea
3. Department of Psychiatry, School of Medicine, Konkuk University, Chungju, Korea
4. Department of Psychiatry, Wonkwang University School of Medicine, Iksan, Korea
5. Department of Psychiatry, Bongseng Memorial Hospital, Busan, Korea
6. Department of Neuropsychiatry, Presbyterian Medical Center-Jesus Hospital, Jeonju, Korea
7. Department of Psychiatry, School of Medicine, Kyungpook National University, Daegu, Korea
8. Department of Psychiatry, College of Medicine, Dongguk University, Gyeongju, Korea
9. Department of Psychiatry, School of Medicine, Catholic University of Daegu, Daegu, Korea