(1)
Almeida, M. C.; Soares, S. F.; Abreu, P. R. C.; Jesus, L. M.; Brito, L. C.; Bernardo-Filho, M. Protective Effect of an Aqueous Extract of Harpagophytum Procumbens Upon Escherichia Coli Strains Submitted to the Lethal Action of Stannous Chloride. Cell Mol Biol (Noisy-le-grand) 2007, 53, 923-927.