Conduct of the survey. 1Physicians, not currently practicing: retired (n=1) and maternity leave (n = 2); 2Nonphysicians identified by Internet research: registered nurse (n=1), graduate student (n=1) and researcher (n=3); 3Valid e-mail address not available: Canadian Hematology Society members (n=49), invalid e-mail (n=32), no e-mail address available (n=6), previously opted out of Survey Monkey (n=5); 4A mailing address was not available for one person who had been sent the e-survey; 5Six respondents indicated by e-mail that they do not treat paediatric patients with hemophilia, which was considered equivalent to having responded to the survey and indicating that they had no recent experience managing newborns with hemophilia