Low-dose progestogens and ectopic pregnancy.
D004304:Dosage Forms; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000139:chemically induced*; D011372:Progestins / Q000009:adverse effects*; D012306:Risk
D004304:Dosage Forms; D011372:Progestins