title: Studies of human factor IX by a high-titred sheep antiserum against factor IX.
mesh_terms: D000818:Animals; D004591:Electrophoresis, Polyacrylamide Gel; D005164:Factor IX / Q000276:immunology*; D006801:Humans; D007106:Immune Sera / Q000494:pharmacology*; D005779:Immunodiffusion; D012756:Sheep / Q000276:immunology
chemical_list: D007106:Immune Sera; D005164:Factor IX