Rock, C. L., Flatt, S. W., Sherwood, N. E., Karanja, N., Pakiz, B., & Thomson, C. A. (2010). Effect of a free prepared meal and incentivized weight loss program on weight loss and weight loss maintenance in obese and overweight women: A randomized controlled trial. JAMA, 304(16), 1803-1810. doi: 10.1001/jama.2010.1503