title: Plasma heparin: a unique, practical, submicrogram-sensitive assay.
mesh_terms: D002122:Calcium Chloride; D005170:Factor X; D006493:Heparin / Q000097:blood*; D006801:Humans; D008722:Methods; D010714:Phosphatidylethanolamines; D012710:Serum Albumin, Bovine; D014325:Tromethamine
chemical_list: D010714:Phosphatidylethanolamines; D014325:Tromethamine; D012710:Serum Albumin, Bovine; D005170:Factor X; D006493:Heparin; D002122:Calcium Chloride