1. Department of Child Psychiatry; Center for Child and Adolescent Psychiatry; Seoul National Hospital; Seoul Korea
2. Department of Psychiatry; Sanggyepaik Hospital; School of Medicine; Inje University; Korea
3. Department of Psychiatry; Seoul National University Bundang Hospital; Seongnam Korea
4. Division of Child & Adolescent Psychiatry; Department of Psychiatry and Institute of Human Behavioral Medicine; Seoul National University College of Medicine; Seoul Korea
5. Department of Psychiatry; Kangwon National University Hospital; Chuncheon-Si Korea