1. Department of Neuropsychiatry, Eulji University School of Medicine, Eulji General Hospital, Seoul 139-711, Korea.
2. Center for Genome Research, Samsung Biomedical Research Institute, Seoul 135-710, Korea.
3. Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.
4. Department of Psychiatry, Dongguk University College of Medicine, Dongguk University International Hospital, Goyang 411-773, Korea.
5. Department of Neuropsychiatry, School of Medicine, Chungbuk National University, Cheongju 361-711, Korea.
6. Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-736, Korea.
7. Department of Psychiatry and Behavioral Science and Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul 110-744, Korea.