Synergistic Chemopreventive Effects of a Novel Combined Plant Extract Comprising Gallic Acid and Hesperidin on Colorectal Cancer oleh Szu-Jung Chen, Jui-Hua Lu, Chih-Cheng Lin, Shao-Wei Zeng, Jia-Feng Chang, Yuan-Chiang Chung, Hsiang Chang, Chih-Ping Hsu