TY - GEN AU - Kuhnz,W AU - Louton,T AU - Back,D J AU - Michaelis,K TI - Radioimmunological analysis of ethinylestradiol in human serum. Validation of the method and comparison with a gas chromatographic/mass spectrometric assay SN - 0004-4172 PY - 1993///0408 KW - Chromatography, High Pressure Liquid KW - Contraceptives, Oral, Hormonal KW - pharmacokinetics KW - Ethinyl Estradiol KW - blood KW - Female KW - Gas Chromatography-Mass Spectrometry KW - Humans KW - Radioimmunoassay KW - Single-Blind Method N1 - Publication Type: Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article ER -