title: Two families with Gm(b) types lacking part of the Gm(b) mosaic.
mesh_terms: D001741:Black or African American; D044466:Asian People; D001789:Blood Group Antigens; D002965:Classification; D005826:Genetics, Medical; D006801:Humans; D007106:Immune Sera; D066298:In Vitro Techniques; D009030:Mosaicism; D005719:gamma-Globulins
chemical_list: D001789:Blood Group Antigens; D007106:Immune Sera; D005719:gamma-Globulins