A Randomized, Controlled Trial of Lottery-Based Financial Incentives to Increase Physical Activity Among Overweight and Obese Adults - Mitesh S. Patel, Kevin G. Volpp, Roy Rosin, Scarlett L. Bellamy, Dylan S. Small, Jack Heuer, Susan Sproat, Chris Hyson, Nancy Haff, Samantha M. Lee, Lisa Wesby, Karen Hoffer, David Shuttleworth, Devon H. Taylor, Victoria Hilbert, Jingsan Zhu, Lin Yang, Xingmei Wang, David A. Asch, 2018 | Zootzle