HCG9 and nasopharyngeal carcinoma: We noticed that the three most significant SNPs mapped to 6p23.31 region and were located within GABBR1, HLA-A, and HCG9. It was only last year that the Taiwan GWAS study reported these genes to be associated with NPC risk Thus, we were surprised that we could also detect the association with high significance by using only 360 patients/360 controls.