1. Department of Psychiatry, Korea University Ansan Hospital, Korea University College of Medicine, Seoul, Korea
2. Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
3. Department of Psychiatry, Veterans Health Service Medical Center, Seoul, Korea
4. Department of Psychiatry, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
5. Department of Psychiatry, Hallym University Sacred Heart Hospital, Anyang, Korea
6. Department of Psychiatry, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
7. Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
8. Global Medical Education, New York, NY, USA
9. Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
10. Department of Psychiatry, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea