Durak I, Kavutcu M, Aytaç B, et al (June 2004). "Effects of garlic extract consumption on blood lipid and oxidant/antioxidant parameters in humans with high blood cholesterol". J. Nutr. Biochem. 15 (6): 373–7. doi:10.1016/j.jnutbio.2004.01.005. PMID 15157944.