1. Pediatric Hematology/Oncology Unit, Soroka University Medical Center and the Faculty of Health Sciences, Ben Gurion University, Beer Sheva, Israel
2. Safra Children's Hospital, Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel
3. Pediatric Infectious Disease Unit, Soroka University Medical Center and the Faculty of Health Sciences, Ben Gurion University, Beer Sheva, Israel
4. Department of Pediatrics, Hadassah University Hospital, Ein Kerem, Jerusalem, Israel
5. Division of Hematology and Oncology, Department of Pediatrics, Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
6. Department of Pediatric Laboratory Medicine, Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
7. Department of Clinical Pharmacology and Toxicology, Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
8. Department of Biology, Talmudic Law and Jewish Medical Ethics, Yeshiva University, New York, New York