title: The rare phenotype Gm(a minus z minus x plus) in 3 Danish families.
mesh_terms: D005260:Female; D005796:Genes; D005826:Genetics, Medical; D005838:Genotype; D006385:Hemagglutination Inhibition Tests; D006386:Hemagglutination Tests; D006801:Humans; D008297:Male; D010641:Phenotype; D005719:gamma-Globulins
chemical_list: D005719:gamma-Globulins