Reticuloendotheliosis virus long terminal repeat elements are efficient promoters in cells of various species and tissue origin , including human lymphoid cells .
reticuloendotheliosis virus long terminal repeat elements are efficient promoters in cells of various species and tissue origin , including human lymphoid cells .
B-virus I-virus O O O O O O B-DNA_domain_or_region O O O O O O O O O O B-cell_type I-cell_type I-cell_type O