15. Shibiao Wu, Jingjing Su, Lianhui Sun, Wenxuan Wang, Yun Zhao, Hui Li, Shengping Zhang, Guanghui Dai, Chuangui Wang, and Jinfeng Hu. Triterpenoids and Steroids from the Fruits of Melia toosendan and Their Cytotoxic Effects on Two Human Cancer Cell Lines. J Nat Prod. 2010 Nov 29;73 (11):1898-906.