title: Statement on the nomenclature of human C4 allotypes.
mesh_terms: D003181:Complement C4 / Q000032:analysis / Q000235:genetics*; D004587:Electrophoresis, Agar Gel; D014644:Genetic Variation; D006801:Humans; D012015:Reference Standards; D009626:Terminology as Topic
chemical_list: D003181:Complement C4