title: Oral contraceptives and severe hypertension.
mesh_terms: D000328:Adult; D000367:Age Factors; D002986:Clinical Trials as Topic; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000139:chemically induced*; D008875:Middle Aged
chemical_list: D003276:Contraceptives, Oral