title: Anti-A autoantibody with severe intravascular hemolysis.
mesh_terms: D000017:ABO Blood-Group System; D000368:Aged; D000744:Anemia, Hemolytic, Autoimmune / Q000276:immunology*; D000937:Antigen-Antibody Reactions; D001323:Autoantibodies / Q000032:analysis*; D005921:Glomerulonephritis / Q000276:immunology; D006801:Humans; D008297:Male
chemical_list: D000017:ABO Blood-Group System; D001323:Autoantibodies