title: Isolation and characterization of a rare urinary steroid by physico-chemical methods.
mesh_terms: D015068:17-Ketosteroids / Q000652:urine*; D000293:Adolescent; D000728:Androgens / Q000652:urine*; D000735:Androstenedione / Q000302:isolation & purification / Q000652:urine; D002849:Chromatography, Gas; D002942:Circular Dichroism; D006801:Humans; D008297:Male; D013057:Spectrum Analysis
chemical_list: D015068:17-Ketosteroids; D000728:Androgens; D000735:Androstenedione