1. Center for Computational Toxicology and Exposure US Environmental Protection Agency, Research Triangle Park Durham NC USA
2. Air, Climate, and Energy Research Program US Environmental Protection Agency, Research Triangle Park Durham NC USA
3. School of Mathematics and Statistics Carleton University Ottawa Canada
4. Risk Sciences International Ottawa Canada
5. McLaughlin Centre for Population Health Risk Assessment University of Ottawa Ottawa Canada
6. Sustainable and Healthy Communities Research Program US Environmental Protection Agency, Research Triangle Park NC USA