title: Elevated caffeine and ethynylestradiol blood levels in hypertensive oral contraceptive users.
mesh_terms: D000328:Adult; D002110:Caffeine / Q000097:blood*; D003276:Contraceptives, Oral / Q000378:metabolism*; D003277:Contraceptives, Oral, Combined / Q000378:metabolism*; D004997:Ethinyl Estradiol / Q000097:blood*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000378:metabolism*
chemical_list: D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D002110:Caffeine; D004997:Ethinyl Estradiol