Induced abortion as a risk factor for cervical pregnancy.
D000028:Abortion, Induced / Q000009:adverse effects*; D002584:Cervix Uteri; D005260:Female; D006801:Humans; D007564:Japan; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000453:epidemiology / Q000209:etiology*; D012306:Risk