The six 5' upstream and one intronic DHS were detected in only perforin-expressing lymphocytes .
the six 5' upstream and one intronic dhs were detected in only perforin-expressing lymphocytes .
O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region B-DNA_domain_or_region O O O O B-cell_type I-cell_type O