References
Insel, P., R. Turner, and D. Ross, Nutrition. 3rd ed. 2007: Jones and Bartlett
U.S. Department of Health and Human Services, Dietary Guidelines for Americans. 2005: p. 1-84.
Lichtenstein, A.H., et al., Modified MyPyramid for Older Adults. J Nutr, 2008. 138(1): p. 5-11.