Randomized clinical trial comparing the efficacy of the vaginal use of metronidazole with a Brazilian pepper tree (Schinus) extract for the treatment of bacterial vaginosis S.R.R.F. Leite, M.M.R. Amorim, P.F.B. Sereno, T.N.F. Leite, J.A.C. Ferreira and R.A.A. Ximenes. Braz J Med Biol Res 2011; 44: 245-252.