title: Cervical pregnancy: transvaginal sonographic diagnosis and conservative surgical management after failure of systemic methotrexate.
authors.forename: G
authors.initials: G
authors.lastname: León
authors.forename: L
authors.initials: L
authors.lastname: Hidalgo
authors.forename: P
authors.initials: P
authors.lastname: Chedraui
mesh_terms: D000020:Abortifacient Agents, Nonsteroidal; D000028:Abortion, Induced / Q000379:methods; D000328:Adult; D002584:Cervix Uteri; D005260:Female; D006801:Humans; D008727:Methotrexate; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging* / Q000601:surgery; D017211:Treatment Failure; D016216:Ultrasonography, Prenatal / Q000379:methods*
chemical_list: D000020:Abortifacient Agents, Nonsteroidal; D008727:Methotrexate