title: Inherited differences in blood group A subtypes in Caucasians and Negroes.
mesh_terms: D000017:ABO Blood-Group System; D000483:Alleles; D000941:Antigens; D044383:Black People; D001789:Blood Group Antigens; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006386:Hemagglutination Tests; D006461:Hemolysis; D006801:Humans; D037102:Lectins; D008297:Male; D010375:Pedigree; D011110:Polymorphism, Genetic; D013223:Statistics as Topic; D044465:White People
chemical_list: D000017:ABO Blood-Group System; D000941:Antigens; D001789:Blood Group Antigens; D037102:Lectins