1. Department of Psychiatry, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
2. Department of Medical Statistics, Catholic University of Daegu, School of Medicine, Daegu, Korea.
3. Regional Military Manpower Office, Daegu, Korea.
4. Department of Psychiatry, Seodaegu Daedong Hospital, Daegu, Korea.
5. Sanullim Hospital, Daegu, Korea.
6. Department of Psychiatry, CHA Gumi Medical Center, CHA University, Gumi, Korea.
7. Department of Psychiatry and Human Behavior, Brown Medical School, Providence, RI, USA.
8. Department of Psychiatry, MunGyeong Jeil General Hospital, Mungyeong, Korea.