HLA-DRB1 and diffuse large B-cell lymphoma: A study conducted by Zong et al. [37] discovered an allele from the HLA-C*12 group, namely HLA-C*12:03 that is part of a haplotype HLA-A*2601~C*1203~B*3801~DRB1*0402~DQB1*0302 positively associated with DLBCL in Caucasians.