HLA-DPB1 and nasopharyngeal carcinoma: Increased risk for NPC has so far been associated with HLA-A*0207 and HLA-B*4601, as well as with the extended haplotype: HLA-A*3303-B*5801/2-DRB1*0301-DQB1*0201/2-DPB1*0401[38].