Oliveira, F.Q. Andrade Neto, V.F. Casali, V.W.D. Zalis, M. Krettli, A.U. Brandão, M.G.L. In vitro antimalarial activity of Bidens pilosa L. root extracts correlated with soil conditions Subjects--Topical Terms: BIDENS PILOSAPLANTA MEDICINALFLAVONÓIDEACETILENOSOLO