title: The importance of establishing the diagnosis of ectopic pregnancy.
authors.forename: Togas
authors.initials: T
authors.lastname: Tulandi
mesh_terms: D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human