540 - Timing of a Single Course Antenatal Steroids and Neurodevelopmental Outcomes of Children Born Preterm: A National Cohort Study

Aseel M. Sa'deh, Dalhousie University Faculty of Medicine, halifax, NS, Canada; Walid El-Naggar, Dalhousie University Faculty of Medicine, Halifax, NS, Canada; Marc Beltempo, McGill University Faculty of Medicine and Health Sciences, Monreal, PQ, Canada; Jehier Afifi, Dalhousie University Faculty of Medicine, Halifax, NS, Canada; Prakesh S. Shah, Mount Sinai Hospital, Toronto, ON, Canada; Krystal Van Den Heuvel, Dalhousie University Faculty of Medicine, Hammonds Plains, NS, Canada; Seungwoo Lee, Mount Sinai Hospital, Toronto, ON, Canada