tokens: MATERIALS AND METHODS : In the present work , we have studied , the activities of GATA-1 and SP1 during differentiation of cultured erythroid progenitors derived from cord blood and from fetal livers , as well as from beta zero- thalassemia patients .
folded_tokens: materials and methods : in the present work , we have studied , the activities of gata-1 and sp1 during differentiation of cultured erythroid progenitors derived from cord blood and from fetal livers , as well as from beta zero- thalassemia patients .
labels: O O O O O O O O O O O O O O O O B-protein_molecule O B-protein_molecule O B-other_name O O B-cell_type I-cell_type O O B-tissue I-tissue O O B-body_part I-body_part O O O O O B-multi_cell I-multi_cell B-other_name O O