title: Diagnostic value of ultrasound scanning and beta-human chorionic gonadotropin in stable patients suspected of ectopic pregnancy.
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000032:analysis*; D018997:Chorionic Gonadotropin, beta Subunit, Human; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D010446:Peptide Fragments / Q000032:analysis*; D011237:Predictive Value of Tests; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis*; D011446:Prospective Studies; D014463:Ultrasonography
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments