Affiliation: | 1. Department of Pediatrics and Adolescent Medicine, Hematology Oncology Service, Children's Cancer Center of Lebanon, American University of Beirut, Beirut, Lebanon;2. Department of Internal Medicine, American University of Beirut, Beirut, Lebanon;3. Department of Pediatrics, Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, Ontario, Canada |