title: The activity of heparin in the presence and absence of Ca2+ ions; why the anti-Xa activity of LMW heparins is about two times overestimated.
authors.forename: H C
authors.initials: HC
authors.lastname: Hemker
authors.forename: S
authors.initials: S
authors.lastname: Béguin
mesh_terms: D000911:Antibodies, Monoclonal; D002118:Calcium / Q000494:pharmacology*; D003627:Data Interpretation, Statistical; D015951:Factor Xa / Q000276:immunology*; D006493:Heparin / Q000494:pharmacology*; D006495:Heparin, Low-Molecular-Weight / Q000276:immunology*; D006801:Humans
chemical_list: D000911:Antibodies, Monoclonal; D006495:Heparin, Low-Molecular-Weight; D006493:Heparin; D015951:Factor Xa; D002118:Calcium