title: The comparative sensitivity and specificity of serum and urine HCG determinations in the ED.
authors.forename: R E
authors.initials: RE
authors.lastname: O'Connor
authors.forename: C M
authors.initials: CM
authors.lastname: Bibro
authors.forename: P J
authors.initials: PJ
authors.lastname: Pegg
authors.forename: J K
authors.initials: JK
authors.lastname: Bouzoukis
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood* / Q000652:urine*; D004630:Emergencies; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests / Q000706:statistics & numerical data; D011446:Prospective Studies; D012680:Sensitivity and Specificity
chemical_list: D006063:Chorionic Gonadotropin