1 Department of Pediatric Emergency Medicine, The Edmond and Lily Safra Children's Hospital, Chaim Sheba Medical Center at Tel Hashomer, Ramat Gan, Israel.
2 The Israeli National Hemophilia Center and Thrombosis Unit, The Amalia Biron Research Institute of Thrombosis and Hemostasis, Chaim Sheba Medical Center at Tel Hashomer, Ramat Gan, Israel.
3 Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Isarel.