title: Oral contraceptives after intestinal bypass operations.
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects* / Q000378:metabolism; D005260:Female; D006801:Humans; D007082:Ileum / Q000601:surgery*; D007583:Jejunum / Q000601:surgery*; D009765:Obesity / Q000628:therapy*
chemical_list: D003276:Contraceptives, Oral