Phifer SS, Lee D, Seo EK, Kim NC, Graf TN, Kroll DJ, Navarro HA, Izydore RA, Jim?nez F, Garcia R, Rose WC, Fairchild CR, Wild R, Soejarto DD, Farnsworth NR, Kinghorn AD, Oberlies NH, Wall ME, Wani MC. Alvaradoins E-N, antitumor and cytotoxic anthracenone C-glycosides from the leaves of Alvaradoa haitiensis. J Nat Prod. 2007 Jun; 70(6):954-61.