title: Increased maternal serum free beta human chorionic gonadotrophin concentrations in Down's pregnancies: an artefactual finding?
authors.forename: T M
authors.initials: TM
authors.lastname: Reynolds
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood*; D004314:Down Syndrome / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000097:blood*
chemical_list: D006063:Chorionic Gonadotropin