title: Ectopic pregnancy. Critical analysis of 139 cases.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008910:Minnesota; D011247:Pregnancy; D011258:Pregnancy Tests; D011271:Pregnancy, Ectopic / Q000175:diagnosis / Q000453:epidemiology* / Q000601:surgery; D012189:Retrospective Studies; D014463:Ultrasonography