1. University of Kyrenia, Faculty of Medicine, Department of Pediatric Endocrinology, Kyrenia, North Cyprus

2. İstanbul University, İstanbul Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey

3. Boğaziçi University, Institute of Environmental Sciences, İstanbul, Turkey

4. İstanbul University, Institute of Child Health, Department of Social Pediatrics, İstanbul, Turkey