title: The molecular polymorphism of ABH blood-group substances in human saliva--a scientific enigma?
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics*; D000372:Agglutination Tests; D001788:Blood Grouping and Crossmatching; D006801:Humans; D011110:Polymorphism, Genetic; D012463:Saliva / Q000032:analysis* / Q000276:immunology
chemical_list: D000017:ABO Blood-Group System