title: Tibolone was associated with an increase in 7 alpha-methyl-ethinylestradiol.
authors.forename: Susan R
authors.initials: SR
authors.lastname: Davis
authors.forename: Evan R
authors.initials: ER
authors.lastname: Simpson
authors.forename: Herbert
authors.initials: H
authors.lastname: Kuhl
authors.forename: Inka
authors.initials: I
authors.lastname: Wiegratz
mesh_terms: D015986:Confounding Factors, Epidemiologic; D020847:Estrogen Receptor Modulators / Q000494:pharmacology*; D004997:Ethinyl Estradiol / Q000031:analogs & derivatives / Q000032:analysis / Q000097:blood / Q000378:metabolism*; D005260:Female; D006801:Humans; D009652:Norpregnenes / Q000494:pharmacology*
chemical_list: D020847:Estrogen Receptor Modulators; D009652:Norpregnenes; D004997:Ethinyl Estradiol; C027385:tibolone