1. Division of Hematology/OncologyDepartment of Internal Medicine, American University of Beirut Medical CenterBeirut Lebanon
2. Department of Internal MedicineEmory University School of MedicineAtlanta Georgia
3. Department of Internal MedicineFoundation of the Scientific Institute for Research, Hospitalization, and Health Care CaCa' Granda Ospedale Maggiore PolyclinicMilan Italy
4. Department of Clinical Sciences and Community HealthUniversity of MilanMilan Italy