title: Early diagnosis of ectopic pregnancy.
authors.affiliation: University of California, San Francisco, School of Nursing.
authors.forename: H K
authors.initials: HK
authors.lastname: Lawlor
authors.forename: B J
authors.initials: BJ
authors.lastname: Rubin
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging; D006063:Chorionic Gonadotropin / Q000032:analysis; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis*; D011374:Progesterone / Q000032:analysis; D012307:Risk Factors; D013997:Time Factors; D014463:Ultrasonography; D014621:Vagina / Q000000981:diagnostic imaging
chemical_list: D006063:Chorionic Gonadotropin; D011374:Progesterone