We have examined the effects of RA on normal hematopoiesis by using early hematopoietic progenitor cells ( HPC ) stringently purified from adult peripheral blood .
we have examined the effects of ra on normal hematopoiesis by using early hematopoietic progenitor cells ( hpc ) stringently purified from adult peripheral blood .
O O O O O O B-other_organic_compound O B-other_name I-other_name O O O B-cell_type I-cell_type I-cell_type O B-cell_type O O O O B-tissue I-tissue I-tissue O