title: Solution of the Rh-Hr nomenclature problem.
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D001803:Blood Transfusion; D006801:Humans; D007106:Immune Sera; D009316:National Institutes of Health (U.S.); D012204:Rh-Hr Blood-Group System; D009626:Terminology as Topic; D014481:United States
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D007106:Immune Sera; D012204:Rh-Hr Blood-Group System