title: Shortening of the clotting time of whole blood by addition of anti-HL-A antisera.
mesh_terms: D000941:Antigens; D001777:Blood Coagulation / Q000187:drug effects*; D001778:Blood Coagulation Disorders; D006648:Histocompatibility; D006801:Humans; D007106:Immune Sera / Q000494:pharmacology*; D007962:Leukocytes / Q000276:immunology; D013268:Stimulation, Chemical; D013997:Time Factors; D014181:Transplantation Immunology
chemical_list: D000941:Antigens; D007106:Immune Sera