HLA-A and nasopharyngeal carcinoma: Of note, however, two recent reports that evaluated HLA Class I association with NPC reported that the association between the HLA-B allele for which the most long-standing evidence for association exists (HLA-B*4601) was only observed in the presence of HLA-A*0207, and that the effect of HLA-A*0207 was independent of the presence of HLA-B*4601 [10], [20].