1. Weill Cornell Medical College, Ar-Rayyan, Qatar
2. Section of Pediatric Allergy-Immunology, Department of Pediatrics, Hamad Medical Corporation, Doha, Qatar
3. Departments of Biostatistics and Medical Informatics, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
4. Departments of Public Health, Medipol International School of Medicine, Istanbul Medipol University, Istanbul, Turkey