1. Department of Psychiatry; College of Medicine; The Catholic University of Korea; Seoul Korea
2. Department of Psychiatry; College of Medicine; Yeungnam University; Daegu Korea
3. Department of Psychiatry; College of Medicine; Hallym University; Anyang Korea
4. Department of Psychiatry; College of Medicine; Inje University; Busan Korea
5. Department of Psychiatry; College of Medicine; Jeju National University; Jeju Korea