1. Division of Child and Adolescent Psychiatry, Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea.
2. Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
3. Department of Psychiatry, Pusan National University YangSan Children's Hospital, Yangsan, Republic of Korea.
4. Department of Psychiatry, Inje University Busan Paik Hospital, Busan, Republic of Korea.
5. Department of Psychiatry, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea.
6. Department of Preventive Medicine, Eulji University, Daejeon, Republic of Korea.