1 Division of Hematology-Oncology, Department of Internal Medicine, American University of Beirut Medical Center, P.O. Box 11-0236, Beirut, 11072020, Lebanon.
2 Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
3 Division of Hematology-Oncology, Department of Internal Medicine, American University of Beirut Medical Center, P.O. Box 11-0236, Beirut, 11072020, Lebanon. [email protected].