Acknowledgements
This work was supported by bridge funding from the Canadian Institutes of Health Research through the Project Scheme Grant and the AHSC AFP Innovation Fund 2014–2015 at the Children’s Hospital of Eastern Ontario. The authors wish to thank Euro-Pharm International Canada Inc. for providing the study drug in-kind, and Qualigen Inc. for providing the FastPak® Vitamin D Immunoassay kits in-kind. The authors also wish to thank the Canadian Critical Care Trials Group (CCCTG) members and Francois Lamontagne (Université de Sherbrooke) from the CCCTG Grant and Manuscript Review Committee for their indispensable involvement and input. Finally, the authors are grateful to the research staff, pharmacy, laboratory, and ICU staff at each participating site.