L-Lactate DehydrogenaseIsoenzymesElectrophoresis, Cellulose AcetateCreatine KinaseAlkaline PhosphataseClinical Enzyme TestsAspartate AminotransferasesKineticsChromatography, Ion ExchangeLiverGlutathione TransferaseElectrophoresisSubstrate SpecificityElectrophoresis, Polyacrylamide GelIsoelectric Focusing