title: HLA and cancer of the esophagus in South African Negroes.
mesh_terms: D044383:Black People; D004938:Esophageal Neoplasms / Q000453:epidemiology / Q000276:immunology*; D006680:HLA Antigens; D006801:Humans; D013019:South Africa
chemical_list: D006680:HLA Antigens