title: Genetic structure of the HL-A system in a Nahua Indian population in Mexico.
mesh_terms: D000293:Adolescent; D002648:Child; D003601:Cytotoxicity Tests, Immunologic; D005787:Gene Frequency; D005828:Genetics, Population; D006648:Histocompatibility; D006649:Histocompatibility Antigens; D006801:Humans; D007125:Immunogenetics; D007198:Indians, North American; D008800:Mexico; D010641:Phenotype
chemical_list: D006649:Histocompatibility Antigens