title: Ethinyl estradiol and norethindrone radioimmunoassay following Sephadex LH-20 column chromatography.
authors.affiliation: Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD.
authors.forename: H A
authors.initials: HA
authors.lastname: Zacur
authors.forename: S
authors.initials: S
authors.lastname: Linkins
authors.forename: V
authors.initials: V
authors.lastname: Chang
authors.forename: B
authors.initials: B
authors.lastname: Smith
authors.forename: A W
authors.initials: AW
authors.lastname: Kimball
authors.forename: R
authors.initials: R
authors.lastname: Burkman
mesh_terms: D002852:Chromatography, Ion Exchange / Q000706:statistics & numerical data; D004997:Ethinyl Estradiol / Q000097:blood*; D005260:Female; D006801:Humans; D008832:Microchemistry; D009640:Norethindrone / Q000097:blood*; D011863:Radioimmunoassay / Q000706:statistics & numerical data
chemical_list: D004997:Ethinyl Estradiol; D009640:Norethindrone