title: Use of octadecyl (C18) columns for the estimation of oestrogens in the urine of non-pregnant women.
mesh_terms: D002845:Chromatography / Q000379:methods*; D002850:Chromatography, Gel; D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans
chemical_list: D004967:Estrogens