1. Department of Psychiatry, Dongguk University International Hospital, Goyang, Korea.
2. Institute of Clinical Psychopharmacology, Dongguk University College of Medicine, Goyang, Korea.
3. Department of Psychiatry, Keyo Hospital, Uiwang, Korea.
4. Department of Psychiatry, Eulji University Hospital, Daejeon, Korea.
5. Department of Psychiatry, SMG-SNU Boramae Medical Center, Seoul, Korea.
6. Department of Psychiatry and Behavioral Science, Seoul National University College of Medicine, Seoul, Korea.
7. Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul, Korea.