DR beta 3 chain antibody, DR7 antibody, DRB3_HUMAN antibody, HLA class II histocompatibility antigen antibody, HLA class II histocompatibility antigen DR beta 3 chain antibody, HLA class II histocompatibility antigen DRB1 7 beta chain antibody, HLA DR3B antibody, HLA-DRB3 antibody, Human leucocyte antigen DRB3 antibody, Major histocompatibility complex class II DR beta 3 antibody, MGC117330 antibody, MHC class II antigen DR beta 3 chain antibody, MHC class II antigen DRB3 antibody, MHC class II HLA DR beta 3 chain antibody