title: [Serum cystyl aminopeptidase in screening for twin pregnancy].
mesh_terms: D000626:Aminopeptidases / Q000097:blood*; D003362:Cost-Benefit Analysis; D010122:Cystinyl Aminopeptidase / Q000097:blood*; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests; D011272:Pregnancy, Multiple; D014427:Twins
chemical_list: D000626:Aminopeptidases; D010122:Cystinyl Aminopeptidase
vernacular_title: S-cystylaminopeptidas som screening för tvillinggraviditet.