McMaster University - McMaster Centre for Transfusion Research, University of Ottawa, McMaster University - Department of Medicine, University of Waterloo - Department of Statistics and Actuarial Science, University of Western Ontario, McGill University - Department of Medicine, McMaster University - McMaster Centre for Transfusion Research, University of Toronto - Department of Medicine, University of Toronto - Department of Laboratory Medicine and Pathobiology, University of Montreal - Université de Montreal, University of Alberta, HagaZiekenhuis van Den Haag, HagaZiekenhuis van Den Haag, McMaster University - Department of Medicine, Mayo Clinic - Florida, McGill University - McGill University Health Centre, McMaster University - McMaster Centre for Transfusion Research, McMaster University - McMaster Centre for Transfusion Research, McMaster University - McMaster Centre for Transfusion Research and McMaster University - Department of Medicine