1Pacific Institute for Research and Evaluation, Calverton, Maryland, and Department of Economics, University of Baltimore, Baltimore, MD, United States
2Pacific Institute for Research and Evaluation, Calverton, MD, United States
3Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, NY, United States
4Cancer Prevention and Control Program, Cancer Center, University of California, San Diego, La Jolla, CA, United States
5Faculty of Law and Faculty of Medicine, University of Ottawa, Ottawa, Canada
6School of Public Health, University of Michigan, Ann Arbor, MI, United States