HLA-DRB1 and type 1 diabetes mellitus: The HLA-DRB1*11:04:01~HLA-DQA1*05:05:01~HLA-DQB1*03:01:01 haplotype was more frequently expressed in controls, which may suggest its protective role against T1D; however, it is to be noted that it does not pass Bonferroni-corrected P-value though the OR is 0; thus, this allele cannot be considered as protective.