title: Cytotoxic contaminants in commercial Clostridium perfringens neuraminidase preparations purified by affinity chromatography.
mesh_terms: D002846:Chromatography, Affinity; D003016:Clostridium perfringens / Q000201:enzymology*; D004340:Drug Contamination; D004591:Electrophoresis, Polyacrylamide Gel; D006863:Hydrogen-Ion Concentration; D009439:Neuraminidase / Q000302:isolation & purification*
chemical_list: D009439:Neuraminidase