1. Jason B. Colditz, Kar-Hai Chu, Chandler R. Larkin, and Brian A. Primack are with the Center for Research on Media, Technology, and Health, University of Pittsburgh School of Medicine, Pittsburgh, PA. Sherry L. Emery is with NORC, University of Chicago, Chicago, IL. A. Everette James is with the Health Policy Institute, University of Pittsburgh Graduate School of Public Health, Pittsburgh. Joel Welling is with the Pittsburgh Supercomputing Center, Pittsburgh.