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Plots showing RBCs survival in incubations containing aqueous (1), ethanolic (2), chloroform (3) and ethyl acetate (4) extracts of TP and PA. Incubations were carried out using microtitre plates as described previously.14 Each experimental well contained 2.3 × 107 of non-infected human RBCs. RBCs were treated with different concentrations of the plant extracts ranging from 1.9 to 500µg/ml.
