1. Department of Paediatrics; Saint George Hospital University Medical Centre; Beirut Lebanon
2. Gilbert and Rose Marie Chagoury School of medicine; Lebanese American University; Paris Cergy-Pontoise France
3. Laboratoire CERBA; Paris Cergy-Pontoise France
4. Department of Laboratory Medicine; Lebanese American University Medical Centre Rizk Hospital; Beirut Lebanon
5. Medical School; University of Ferrara; Ferrara Italy
6. CHU de Montpellier; Department of Biological Haematology; Montpellier France