Shanmugam Manoharan, Raju Kowsalya, Simon Silvan, Nagarethinam Baskaran, and Chezhiyan Anusuya, “Anti-lipid peroxidative potential of glycyrrhetinic acid in 7,12- dimethylbenz(a)anthracene induced hamster buccal pouch carcinogenesis”, Int. J. Res. Pharm. Sci., vol. 2, no. 4, pp. 596–600, Nov. 2011.