tokens: In hematopoietic system , RA and RARs , predominantly RAR alpha may play key roles for the proliferation and differentiation of hematopoietic progenitors .
folded_tokens: in hematopoietic system , ra and rars , predominantly rar alpha may play key roles for the proliferation and differentiation of hematopoietic progenitors .
labels: O O O O B-other_organic_compound O B-protein_family_or_group O O B-protein_molecule I-protein_molecule O O O O O O O O B-other_name O B-cell_type I-cell_type O