1. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
2. Department of Psychiatry, Keyo Hospital, Keyo Medical Foundation, Uiwang, Republic of Korea.
3. Department of Psychiatry, Hallym University Medical Center, Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea.
4. WHO Collaborating Center of Yongin Mental Hospital, Yongin, Republic of Korea.
5. Department of Psychiatry, Ilsan Paik Hospital, College of Medicine, Inje University, Goyang, Republic of Korea.
6. Department of Psychiatry, College of Medicine, Hallym University, Anyang, Republic of Korea.