1. Department of Anesthesiology; University of Sherbrooke; Sherbrooke QC Canada
2. Department of Anesthesiology, Peri-operative and Pain Medicine; Boston Children's Hospital; Harvard Medical School; Boston MA USA
3. Department of Anesthesiology, Pharmacology and Intensive Care; Geneva University Hospitals; Geneva Switzerland
4. Reference Centre for Hemophilia and von Willebrand Disease; University Hospital of Caen; Caen France
5. Department of Biological Hematology; AP-HP Hôpital Necker-Enfants Malades; INSERM UMR_S 765; Paris Descartes University; Sorbonne Paris Cité; Paris France