tokens: Retinoic acid induces apoptosis of human CD34+ hematopoietic progenitor cells : involvement of retinoic acid receptors and retinoid X receptors depends on lineage commitment of the hematopoietic progenitor cells .
folded_tokens: retinoic acid induces apoptosis of human cd34+ hematopoietic progenitor cells : involvement of retinoic acid receptors and retinoid x receptors depends on lineage commitment of the hematopoietic progenitor cells .
labels: B-other_organic_compound I-other_organic_compound O B-other_name O B-cell_type I-cell_type I-cell_type I-cell_type I-cell_type O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O B-cell_type I-cell_type I-cell_type O