1. Department of Child and Adolescent Psychiatry, Medikal Park Hospital, Samsun, Turkey
2. Department of Child and Adolescent Psychiatry, Ondokuz Mayis University, Samsun, Turkey
3. Division of Pediatric Allergy and Immunology, Ondokuz Mayis University, Samsun, Turkey
4. Yale Child Study Center, New Haven, CT, USA
5. Department of Child and Adolescent Psychiatry, Namik Kemal University, Tekirdag, Turkey
6. Department of Child and Adolescent Psychiatry, Kayseri Education and Research Hospital, Kayseri, Turkey