1. Department of Psychiatry, Pusan National University Yangsan Hospital, Yangsan, Korea.
2. Department of Psychiatry, Pusan National University School of Medicine, Yangsan, Korea.
3. Medical Research Institute, Pusan National University, Busan, Korea.
4. Department of Anatomy, Pusan National University School of Medicine, Yangsan, Korea.
5. Department of Biochemistry, Pusan National University School of Medicine, Yangsan, Korea.