1. Department of Psychiatry, Gil Medical Center, School of Medicine; Gachon University; Incheon Korea
2. Department of Psychiatry, School of Medicine, Institute of Brain Research; Chungnam National University; Daejeon Korea
3. Department of Psychiatry, College of Medicine; Dongguk University; Gyeongju Korea
4. Department of Psychiatry, School of Medicine; Catholic University of Daegu; Daegu Korea