The Effect of Cost Sharing on an Employee Weight Loss Program: A Randomized Trial.

John LK, Troxel AB, Yancy WS Jr, Friedman J, Zhu J, Yang L, Galvin R, Miller-Kovach K, Halpern SD, Loewenstein G, Volpp K.
Am J Health Promot. 2018 Jan;32(1):170-176.