1. Center for Platelet Research Studies, Division of Hematology/Oncology, Boston Children’s Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA;
2. Division of Pediatric Hematology/Oncology, New York Presbyterian Hospital/Weill Cornell Medical College, New York, NY;
3. Platelet Biology Laboratory, New York Blood Center, New York, NY;
4. Department of Pediatric Hematology/Oncology, Hadassah Hebrew University Hospital, Jerusalem, Israel; and
5. Pediatric Hematology Oncology, Schneider Children’s Medical Center of Israel, Petah Tikva, Israel