1. Department of Psychiatry, Konkuk University Medical Center, School of Medicine, Konkuk University, Seoul, Republic of Korea.
2. Department of Psychiatry, Soonchunhyang University College of Medicine, Bucheon Hospital, Bucheon, Republic of Korea.
3. Department of Psychiatry, College of Medicine, Inje University, Ilsan Paik Hospital, Goyang, Republic of Korea.
4. Department of Konkuk University Chungju Hospital, School of Medicine, Konkuk University, Chungju, Republic of Korea.
5. Department of Psychiatry, College of Medicine, Inje University, Sanggye Paik Hospital, Seoul, Republic of Korea.
6. Department of Psychiatry, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea.
7. Department of Psychiatry, Chung-Ang University, College of Medicine, Seoul, Republic of Korea.
8. Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea.
9. Department of Neuropsychiatry, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Republic of Korea.
10. Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.