Liao, J C High-performance liquid chromatography of pyruvic and alpha-ketoglutaric acids and its application to urine samples. [electronic resource] - Clinical chemistry May 1977 - 802-5 p. digital Publication Type: Journal Article ISSN: 0009-9147 Subjects--Topical Terms: Chromatography, High Pressure LiquidHumansKetoglutaric Acids--urineMethodsPyruvates--urineQuinoxalines--chemical synthesis