1. Department of Physiology and Pathophysiology, The University of Manitoba, Winnipeg, Canada;
2. Biology of Breathing Group, Manitoba Institute of Child Health, Winnipeg, Canada;
3. Department of Chemistry, The University of Manitoba, Winnipeg, Canada;
4. Department of Environmental Studies and Sciences, The University of Winnipeg, Richardson College for the Environment, Winnipeg, Canada; and
5. Department of Chemistry, The University of Winnipeg, Richardson College for the Environment, Winnipeg, Canada
6. Department of Pediatrics and Child Health, The University of Manitoba, Winnipeg, Canada;
7. Department of Internal Medicine, The University of Manitoba, Winnipeg, Canada;