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Hsia-Fen Hsu; Kuo-Hung Huang; Kuei-Ju Lu; Shu-Jiau Chiou; Jui-Hung Yen; Chi-Chang Chang; Jer-Yiing Houng. (2011). Typhonium blumei extract inhibits proliferation of human lung adenocarcinoma A549 cells via induction of cell cycle arrest and apoptosis. , 135(2), 0–500. doi:10.1016/j.jep.2011.03.048 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research