1. Department of Psychiatry, Eulji General Hospital, Seoul, Korea
2. Department of Neuropsychiatry, Eulji University School of Medicine, Daejeon, Korea
3. Department of Psychiatry, Eulji University Hospital, Daejeon, Korea
4. Department of Neuropsychiatry, Dongguk University Ilsan Hospital, Dongguk University School of Medicine, Goyang, Korea
5. Departments of Psychiatry and Behavioral Science, Seoul National University College of Medicine, Seoul, Korea
6. Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Korea
7. Department of Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
8. Department of Psychiatry, Keyo Hospital, Uiwang, Korea