1. Department of Psychiatry, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul
2. Department of Medical Science, Graduate School of Soonchunhyang University, Asan
3. Department of Nursing, Masan University, Changwon
4. Department of Psychiatry, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea