title: Chido and Rodgers blood groups are distinct antigenic components of human complement C4.
mesh_terms: D000483:Alleles; D001789:Blood Group Antigens; D003181:Complement C4 / Q000235:genetics; D000939:Epitopes; D008040:Genetic Linkage; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D010375:Pedigree; D011110:Polymorphism, Genetic
chemical_list: D001789:Blood Group Antigens; D003181:Complement C4; D000939:Epitopes; D006680:HLA Antigens