Infrared microspectrophotometry of urinary steroids separated by gas chromatography.
D000738:Androsterone / Q000652:urine*; D002849:Chromatography, Gas; D005043:Etiocholanolone / Q000652:urine*; D006801:Humans; D007259:Infrared Rays; D013053:Spectrophotometry
D005043:Etiocholanolone; D000738:Androsterone