1. Department of Haematology; University College London; London UK
2. Thalassemia Center; Children's Hospital; Ain Shams University; Cairo Egypt
3. Department of Internal Medicine; American University of Beirut; Beirut Lebanon
4. Department of Pediatric Hematology; Ege University Hospital; Izmir Turkey
5. Department of Haematology; St George Hospital; Sydney NSW Australia
6. Division of Haematology; Department of Medicine; Faculty of Medicine; Chulalongkorn University and King Chulalongkorn Memorial Hospital; Bangkok Thailand
7. Novartis Pharma AG; Basel Switzerland
8. Novartis Pharmaceuticals; East Hanover NJ USA
9. Hematology Department; Pediatric Hospital; Cairo University; Cairo Egypt