

By Dr. Sally C. Moyce
Assistant Professor of Public Health
Montana State University

By Dr. Marc Schenker
Distinguished Professor of Public Health Sciences
University of California, Davis
Originally published by Annual Review of Public Health 39 (April 2018, 351-365), DOI:/10.1146/annurev-publhealth-040617-013714, under the terms of a Creative Commons Attribution 2.0 Generic license.
