Pitfalls in the diagnosis of ectopic pregnancy.
D000028:Abortion, Induced; D000328:Adult; D004717:Endometrium / Q000166:cytology; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011274:Pregnancy, Tubal / Q000175:diagnosis* / Q000473:pathology; D014463:Ultrasonography; D014619:Vacuum Curettage