HLA-A and nasopharyngeal carcinoma: Therefore, to further tested the hypothesis and provide further evidence for the possible existence of major susceptibility of Nasopharyngeal carcinoma in the region near HLA-A locus, we carried out a two-stage case-control association study to focus on the investigation of 132 Kb segment of interest with moderate sample size (535 cases and 525 control) in a southern Chinese population.