Activation of the human delta-globin gene promoter in primary adult erythroid cells .
activation of the human delta-globin gene promoter in primary adult erythroid cells .
O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-cell_type I-cell_type I-cell_type I-cell_type O