1. Kaufman DW, Kelly JP, Rosenberg L, et al. Recent patterns of medication use in the ambulatory adult population of the United States: the Slone survey. JAMA 2002;287:337–344.
2. IMS Health, Inc. Global pharmaceutical sales by region, 2007. Available at:
www.imshealth.com
.
3. Centers for Medicare & Medicaid Services, Office of the Actuary. National health expenditure projections. Available at:
http://www.cms.hhs.gov/NationalHealthExpendData/Downloads/proj2007.pdf
.
4. World Health Organization, Food and Agriculture Organization of the United Nations. WHO Technical Report Series (916): Diet, Nutrition and the Prevention of Chronic Diseases, 2003. Available at:
http://www.fao.org/docrep/005/AC911E/ac911e00.HTM
. Accessed May 2008.
5. USDA, Agricultural Research Service. Nutrient Intakes: Mean Amounts Consumed per Individual, One Day, 2005–2006. NHANES
http://www.ars.usda.gov/Services/docs.htm?docid=15044
. Accessed May 2008.