title: A study of antiheparin activity of serum and platelet factor 4.
mesh_terms: D001779:Blood Coagulation Factors; D001792:Blood Platelets; D002118:Calcium / Q000097:blood*; D002850:Chromatography, Gel; D006494:Heparin Antagonists; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007525:Isoelectric Focusing; D008970:Molecular Weight
chemical_list: D001779:Blood Coagulation Factors; D006494:Heparin Antagonists; D002118:Calcium