title: A single extraction gas chromatographic method for the determination of estriol in pregnancy urines: comparison with an alkaline purification method and drug interference studies.
mesh_terms: D002849:Chromatography, Gas; D004347:Drug Interactions; D004964:Estriol / Q000302:isolation & purification / Q000652:urine*; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008722:Methods; D011247:Pregnancy
chemical_list: D004964:Estriol