Evaluation of existing techniques: is 'the pill' safe enough to continue using?
D000328:Adult; D003274:Contraceptive Devices, Female / Q000009:adverse effects*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011247:Pregnancy; D006113:United Kingdom
D003276:Contraceptives, Oral