An improved method of gradient elution chromatography and its application to the separation of urinary ketosteroids.
D002845:Chromatography; D006801:Humans; D007664:Ketosteroids; D013256:Steroids / Q000652:urine*; D014556:Urine
D007664:Ketosteroids; D013256:Steroids
CHROMATOGRAPHY; STEROIDS/in urine; URINE