New Chalcone and Dimeric Chalcones with 1,4-p-Benzoquinone Residue from Combretum yunnanense - Wu, Ming-Mei; Wang, Li-Qin; Hua, Yan; Chen, Ye-Gao; Wang, Yuan-Yuan; Li, Xing-Yao; Li, Yan; Li, Ting; Yang, Xun-Yun; Tang, Zheng-Rong (Planta Medica, 2011)