Ross C. Brownson, PhD is the Bernard Becker Professor of Public Health at both the George Warren Brown School of Social Work and the Alvin J. Siteman Cancer Center at Washington University School of Medicine in St. Louis. In addition to this joint appointment, he is Co-Director of the Prevention Research Center in St. Louis. Prior to his academic career, Dr. Brownson served with the Missouri Department of Health for eight years. A prolific author, he has written and edited several books including Chronic Disease Epidemiology and Control; Applied Epidemiology: Theory to Practice; and Evidence-B...