1. Department of Psychiatry, Wonkwang University Hospital, Iksan, Korea
2. Department of Medicine, Graduate School of Wonkwang University, Iksan, Korea
3. Didim Psychiatric Clinic, Seoul, Korea
4. Department of Psychiatry, Wonkwang University School of Medicine, Iksan, Korea
5. Korea Brain-Behavior Mental Health Institute, Jeonju, Korea