1. Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
2. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
3. Departments of Medicine and Community Health and Epidemiology, Dalhousie Medicine New Brunswick and Dalhousie University, Saint John, NB, Canada
4. Department of Medicine, Division of Physical Medicine and Rehabilitation, University of Toronto, Toronto, ON, Canada
5. Department of Rehabilitative Care, Providence Healthcare-Unity Health Toronto, Toronto, ON, Canada
6. Environmental Health Services, British Columbia Centre for Disease Control, Vancouver, BC, Canada
7. National Collaborating Centre for Environmental Health, Vancouver, BC, Canada