Fertility and contraception after age forty.
D000367:Age Factors; D003267:Contraception; D003276:Contraceptives, Oral / Q000009:adverse effects; D003937:Diagnosis, Differential; D005260:Female; D005298:Fertility; D005831:Genital Diseases, Female / Q000175:diagnosis; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D008875:Middle Aged
D003276:Contraceptives, Oral