Cytotoxic sesquiterpene lactones from Pseudoelephantopus spicatus
Yang YL , Chang SM, Wu CC, Hsieh PW, Chen SL, Chang FR, Hung WC, Issa HH, Wu YC (2007) Cytotoxic sesquiterpene lactones from Pseudoelephantopus spicatus Journal of Natural Products, 70(11), 1761-1765