1 Department of Health Research Methods, Evidence, and Impact, McMaster University, Health Sciences Centre, Room 2C14, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada.
2 Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, P.O. Box 12233, Mail Drop K2-02, Research Triangle Park, NC 27709, USA.
3 Sydney Medical School, University of Sydney, New South Wales 2006, Australia; National Health and Medical Research Council, 16 Marcus Clarke Street, Canberra City, ACT 2601, Australia.
4 Department of Health Research Methods, Evidence, and Impact, McMaster University, Health Sciences Centre, Room 2C14, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada; Department of Medicine, McMaster University, Health Sciences Centre, Room 2C14, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada. Electronic address: schuneh@mcmaster.ca.
5 Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.
6 Environmental Soil Science and Biogeochemistry, Research Center for Eco-environmental Sciences, 18 Shuangqing Road, Haidian, Beijing 100085, China; Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China.
7 Integrated Risk Information System (IRIS) Division, National Center for Environmental Assessment (NCEA), Office of Research and Development, US Environmental Protection Agency, Building B (Room 211i), Research Triangle Park, NC 27711, USA.