title: Ectopic pregnancy.
authors.forename: R J
authors.initials: RJ
authors.lastname: Norman
mesh_terms: D006063:Chorionic Gonadotropin / Q000652:urine*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis / Q000652:urine*
chemical_list: D006063:Chorionic Gonadotropin