1. Department of Psychiatry, Kyungpook National University, Daegu, Korea.
2. Department of Psychiatry, Kyungpook National University Chilgok Hospital, Daegu, Korea.
3. Department of Psychiatry, School of Medicine, Kyungpook National University, Daegu, Korea.
4. Department of Psychiatry, Kyungpook National University Children’s Hospital, Daegu, Korea.