New Cytotoxic Lupane Triterpenes from Perrottetia arisanensis - Du, Ying-Chi; Lin, An-Shen; Wu, Chin-Chung; Hsieh, Pei-Wen; Chen, Yung-Husan; Chen, I-Hsiao; Chen, Shu-Li; Yen, Hsin-Fu; Lübken, Tilo; Chang, Fang-Rong; Wu, Yang-Chang (Planta Medica, 2009)