"HLA-DRB1*0301|HLA-DRB1 (NIH - Gene)" . "HLA-DRB1 gene|HLA-DRB1 (NIH - Gene)" . "nitric oxide receptor|HLA-DRB1 (NIH - Gene)" . "hla-drb1 gene (nih - gene)" . "HLA-DRB1 (NIH - Gene)" . "HLA-DRB1|RBM45 (NIH - Gene)" . . "DRB Gene|HLA-DRB1 (NIH - Gene)" . . "drb gene (nih - gene)" .