Bolton, A E Evidence for the presence of 6-keto-oestradiol-17beta in human plasma-implications for oestradiol-17beta radioimmunoassays. [electronic resource] - Journal of steroid biochemistry Jan 1976 - 71-2 p. digital Publication Type: Journal Article ISSN: 0022-4731 Standard No.: 10.1016/0022-4731(76)90168-0 doi Subjects--Topical Terms: Cross ReactionsEstradiol--analogs & derivativesFemaleHumansLuteal PhaseMalePregnancyRadioimmunoassay--methodsStructure-Activity Relationship