1. Division of Biostatistics, University of Minnesota, Minneapolis, MN 55455, USA;
2. Department of Biostatistics, University of California-Los Angeles, Los Angeles, CA 90095, USA;
3. Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA;
4. Exposure Assessments Applications, LLC, Arlington, VA 22207, USA;
5. National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA;
6. National Cancer Institute, Bethesda, MD 20892, USA;
7. Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
8. Stewart Exposure Assessments, LLC, Arlington, VA 22207, USA