1. Guidance for industry on complementary and alternative medicine products and their regulation by the food and drug administration. U.S. Food and Drug Administration, December 2006. http://www.fda.gov/downloads/RegulatoryInformation/Guidances/UCM145405.pdf. Accessed November 23, 2012.
2. Ethical issues concerning research in complementary and alternative medicine;Miller;JAMA,2004
3. What is a dietary supplement?: U.S. Food and Drug Administration, Last updated December 2009. http://www.fda.gov/AboutFDA/Transparency/Basics/ucm195635.htm. Accessed November 22, 2012.
4. Letter to manufacturers regarding botanicals and other novel ingredients in conventional foods. U.S. Food and Drug Administration. Last updated September 2012. http://www.fda.gov/Food/DietarySupplements/GuidanceComplianceRegulatoryInformation/ucm103443.htm. Accessed November 23, 2012.
5. Guidance for industry: Pharmacokinetics in patients with impaired renal function—study design, data analysis, and impact on dosing and labeling. U.S Food and Drug Administration, March 2010. http://www.fda.gov/downloads/Drugs/GuidanceComplianceRegulatoryInformation/Guidances/UCM204959.pdf. Accessed November 23, 2012.