Estriol and creatinine in pregnancy urine.
D002247:Carbon Isotopes; D002849:Chromatography, Gas; D003404:Creatinine / Q000652:urine*; D004964:Estriol / Q000652:urine*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D008722:Methods; D011247:Pregnancy; D013997:Time Factors
D002247:Carbon Isotopes; D003404:Creatinine; D004964:Estriol