@article{fe24a767e43147f5a62c94a193bacca4,
title = "Ethinyl estradiol and norethindrone radioimmunossay following Sephadex LH-20 column chromatography",
keywords = "Celite, Chromatography, Ethinyl estradiol, Norethindrone, Radioimmunoassay, Sephadex LH-20",
author = "Zacur, {Howard A.} and Susan Linkins and Victoria Chang and Beverly Smith and Kimball, {allyn W.} and Ronald Burkman",
year = "1991",
month = dec,
day = "31",
doi = "10.1016/0009-8981(91)90232-2",
language = "English (US)",
volume = "204",
pages = "209--215",
journal = "Clinica Chimica Acta",
issn = "0009-8981",
publisher = "Elsevier",
number = "1-3",
}