title: The separation of clotting factors. II. Purification of human factor IX by isoelectric focusing.
mesh_terms: D002850:Chromatography, Gel; D004589:Electrophoresis, Disc; D005164:Factor IX / Q000302:isolation & purification*; D006801:Humans; D007525:Isoelectric Focusing; D011516:Prothrombin / Q000302:isolation & purification
chemical_list: D011516:Prothrombin; D005164:Factor IX