HLA-B and nasopharyngeal carcinoma: A study on the association between HLA alleles in 132 NPC patients in northern China discovered 25 types of HLA-B alleles, and the alleles with high frequencies were HLA-B*40 (31.1%), -B*46 (30.3%), -B*15 (19.7%), -B*13 (15.2%), -B*58 (13.6%), and -B*07 (4.5%) (Wang and Wang, 2014) [12].