Ródio, C., da, Rocha, Vianna, D., Kowalski, K.P., Panatieri, L.F., von, Poser, G., Rott, M.B. (2008)In vitro evaluation of the amebicidal activity of Pterocaulon polystachyum (Asteraceae) against trophozoites of Acanthamoeba castellanii, Parasitol Res. , 104(1), 191-4.