1 Tamara Taggart is with the Department of Prevention and Community Health, George Washington University, Washington, DC. Sabrina L. Smiley is with the Division of Health Promotion and Behavioral Science, San Diego State University School of Public Health, San Diego, CA. Tiarney D. Ritchwood is with the Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC. All authors are also guest editors of this special issue.