Oleanane-Type Triterpene Saponins and Cassaine-Type Diterpenoids from Erythrophleum fordii - Du, Dan; Fang, Lei; Qu, Jing; Yu, Shishan; Ma, Shuanggang; Lv, Haining; Liu, Jing; Liu, Yuanyan; Wang, Jiaming; Wang, Xiaojing (Planta Medica, 2011)