Batta, Ashok K.; Xu, Guorong; Honda, Akira; Miyazaki, Teruo; Salen, Gerald. Stigmasterol reduces plasma cholesterol levels and inhibits hepatic synthesis and intestinal absorption in the rat. Metabolism, Clinical and Experimental. 2006, 55 (3): 292–299. doi:10.1016/j.metabol.2005.08.024.
Heinemann T, Kullak-Ublick GA, Pietruck B, von Bergmann K. Mechanisms of action of plant sterols on inhibition of cholesterol absorption. Comparison of sitosterol and sitostanol. European Journal of Clinical Pharmacology . 1991, 40 (Suppl 1): S59–63. PMID 2044646. doi:10.1007/BF01409411.
Heinemann T, Pietruck B, Kullak-Ublick G, von Bergmann K. Comparison of sitosterol and sitostanol on inhibition of intestinal cholesterol absorption. Agents and Actions. Supplements . 1988, 26: 117–122. PMID 3265272.
Heinemann T, Kullak-Ublick GA, Pietruck B, von Bergmann K. Mechanisms of action of plant sterols on inhibition of cholesterol absorption. Comparison of sitosterol and sitostanol. European Journal of Clinical Pharmacology . 1991, 40 (Suppl 1): S59–63. PMID 2044646. doi:10.1007/BF01409411.