1. Elbel B, Gyafami J, Kersh R . Child and adolescent fast food choice and the influence of calorie labeling: a natural experiment. Int J Obesity 2011; 35: 493–500.
2. Winerman L . With menu labeling law, diners will soon know calorie counts, 2010, http://www.pbs.org/newshour/rundown/2010/03/with-menu-labeling-law-diners-will-soon-know-calorie-counts.html# . Accessed 28 December, 2010.
3. Faith MS, Fontaine KR, Baskin ML, Allison DB . Toward the reduction of population obesity: macro-level environmental approaches to the problems of food, eating, and obesity. Psychol Bull 2007; 133: 205–226.
4. Anderson ML, Matsa DA . Are restaurants really supersizing America? Amer Econ J: Appl Econ (in press). http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1079584 . Accessed December 28, 2010.
5. Robert Wood Johnson Foundation. Menu labeling: does providing nutrition information at the point of purchase affect consumer behavior?, 2009, http://www.rwjf.org/files/research/20090630hermenulabeling.pdf . Accessed 26 December, 2010.