title: A new allele (U18) in the HL-A system.
mesh_terms: D000042:Absorption; D000483:Alleles; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes; D005260:Female; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006801:Humans; D008297:Male; D010375:Pedigree
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens