Escape of human cytomegalovirus from HLA-DR -restricted CD4 ( + ) T-cell response is mediated by repression of gamma interferon -induced class II transactivator expression .
escape of human cytomegalovirus from hla-dr -restricted cd4 ( + ) t-cell response is mediated by repression of gamma interferon -induced class ii transactivator expression .
O O B-virus I-virus O B-protein_molecule O O O O O O O O O O O O B-protein_family_or_group I-protein_family_or_group O B-protein_molecule I-protein_molecule I-protein_molecule O O