Obesity Prevention at an Early Age: Progress, but a Long Way to Go Digital Health Behavior Intervention to Prevent Childhood Obesity William J. Heerman, MD, MPH; Russell L. Rothman, MD, MPP; Lee M. Sanders, MD, MPH; Jonathan S. Schildcrout, PhD; Kori B. Flower, MD, MS, MPH; Alan M. Delamater, PhD; Melissa C. Kay, PhD, MPH, MS, RD, CLC; Charles T. Wood, MD, MPH; Rachel S. Gross, MD, MS; Aihua Bian, MPH; Laura E. Adams, RD, MBA; Evan C. Sommer, BS, BA; H. Shonna Yin, MD, MSc; Eliana M.