Scott Kahan, MD, MPH, is director of the Strategies to Overcome and Prevent (STOP) Obesity Alliance at George Washington University and the National Center for Weight and Wellness. He is an instructor at the Johns Hopkins Bloomberg School of Public Health and a clinical professor at the George Washington University School of Medicine and the George Washington University School of ... Read morePublic Health and Health Services. Andrea C. Gielen, ScD, ScM, is a professor of health, behavior, and society at the Johns Hopkins Bloomberg School of Public Health and director of the Johns Hopkins Center for Injury Research and Policy. Peter J. Fagan, PhD, is an associate professor of medical psychology in the Department of Psychiatry and Behavioral Sciences at Johns Hopkins University School of Medicine. Lawrence W. Green, DrPH, is a professor of epidemiology and biostatistics at the University of California, San Francisco, and a faculty associate of the Center for Tobacco Control Research and Education and the Helen Diller Family Comprehensive Cancer Center. Show Less