title: Gm(20), a new hereditary gamma globulin factor.
mesh_terms: D000328:Adult; D001741:Black or African American; D044466:Asian People; D005260:Female; D005796:Genes; D005828:Genetics, Population; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008297:Male; D044465:White People; D005719:gamma-Globulins
chemical_list: D005719:gamma-Globulins