Simultaneous multicolumn liquid-liquid and liquid-solid chromatography with a computerized readout system.
D015068:17-Ketosteroids / Q000652:urine; D001322:Autoanalysis; D002845:Chromatography; D003124:Colorimetry; D003201:Computers; D013256:Steroids / Q000652:urine
D015068:17-Ketosteroids; D013256:Steroids