1. Risk Sciences International Ottawa Canada
2. School of Mathematics and Statistics Carleton University Ottawa Canada
3. Center for Compuational Toxicology and Exposure, Office of Research and Development US Environmental Protection Agency Research Triangle Park North Carolina USA
4. Office of Research and Development US Environmental Protection Agency Research Triangle Park North Carolina USA
5. Air, Climate, and Energy Research Program, Office of Research and Development US Environmental Protection Agency Research Triangle Park North Carolina USA
6. McLaughlin Centre for Population Health Risk Assessment University of Ottawa Ottawa Canada