Nuttall, F Q A simple rapid colorimetric method for determination of creatine kinase activity. [electronic resource] - The Journal of laboratory and clinical medicine Aug 1966 - 324-32 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0022-2143 Subjects--Topical Terms: Blood Chemical AnalysisColorimetryCreatine Kinase--analysisHumansPhenylhydrazinesPyruvatesSulfhydryl Compounds