Metronidazole resistance in the protozoan parasite Entamoeba histolytica is associated with increased expression of iron-containing superoxide dismutase and peroxiredoxin and decreased expression of ferredoxin 1 and flavin reductase - Wassmann, C; Hellberg, A; Tannich, E; Bruchhaus, I (J Biol Chem, 1999)