Sesquiterpene lactones from Gynoxys verrucosa and their anti-MRSA activity.
Ord??ez PE, Quave CL, Reynolds WF, Varughese KI, Berry B, Breen PJ, Malag?n O, Smeltzer MS, Compadre CM. Sesquiterpene lactones from Gynoxys verrucosa and their anti-MRSA activity. J Ethnopharmacol. 2011 09 02; 137(2):1055-9.