title: On the 'Diagnostic values of serum hCG on the outcome of pregnancy of unknown location (PUL): a systematic review and meta-analysis'.
authors.affiliation: Department of Women's and Children Health,  University of Liverpool, Liverpool,  UK.
authors.forename: Zarko
authors.initials: Z
authors.lastname: Alfirevic
authors.forename: Roy G
authors.initials: RG
authors.lastname: Farquharson
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis*
chemical_list: D006063:Chorionic Gonadotropin