1 Centre for Outcomes Research & Evaluation, Research Institute of the McGill University Health Centre, 5252 de Maisonneuve Blvd, Montreal, QC, H4A 3S5, Canada. [email protected].
2 Centre for Outcomes Research & Evaluation, Research Institute of the McGill University Health Centre, 5252 de Maisonneuve Blvd, Montreal, QC, H4A 3S5, Canada.
3 Department of Mathematics and Statistics, University of Montreal, 2920 chemin de la Tour, Montreal, QC, H3T 1J4, Canada.
4 School of Physical & Occupational Therapy, Faculty of Medicine, McGill University, 3654 prom Sir-William-Osler, Montreal, QC, H3G 1Y5, Canada.