Five New Triterpene Glycosides from Lysimachia foenum-graecum and Evaluation of their Effect on the Arachidonic Acid Metabolizing Enzyme - Shen, Yun-Heng; Weng, Zhi-Ying; Zhao, Qin-Shi; Zeng, Yue-Qin; Ríos, José-Luis; Xiao, Wei-Lie; Xu, Gang; Sun, Han-Dong (Planta Medica, 2005)