title: High-resolution biomedical gas chromatography. Study of urinary steroid metabolite ratios of women with breast lesions using open-tubular glass capillary columns.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000738:Androsterone / Q000652:urine; D001941:Breast Diseases / Q000652:urine*; D001943:Breast Neoplasms / Q000652:urine*; D002849:Chromatography, Gas / Q000379:methods; D003550:Cystic Fibrosis / Q000652:urine*; D005043:Etiocholanolone / Q000652:urine; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D013256:Steroids / Q000652:urine*; D013760:Tetrahydrocortisol / Q000652:urine
chemical_list: D013256:Steroids; D013760:Tetrahydrocortisol; D005043:Etiocholanolone; D000738:Androsterone