1. Department of Psychiatry, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
2. Department of Psychiatry, Seoul Medical Center, Seoul, Korea.
3. Counseling Psychology, Graduate School of Education, Hankuk University of Foreign Studies, Seoul, Korea.
4. Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
5. Division of Infectious Diseases, Department of Internal Medicine, National Medical Center, Seoul, Korea.
6. Department of Psychiatry, National Medical Center, Seoul, Korea.