title: Diagnosing ectopic pregnancy.
authors.forename: J N
authors.initials: JN
authors.lastname: Hendry
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood*; D003937:Diagnosis, Differential; D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000175:diagnosis*; D012307:Risk Factors; D012769:Shock / Q000209:etiology; D014463:Ultrasonography
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human