title: Letter: Skin color and HLA.
mesh_terms: D044383:Black People; D005796:Genes; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006801:Humans; D012880:Skin Pigmentation; D044465:White People
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens