blood bloodtransfusion cancer celldetermination celldifferentiation cellline celllines celltransformation colony-stimulatingfactors congresses cytology developmentalcytology geneexpression geneexpressionregulation geneticregulation genetics growth growthsubstances hematopoieticgrowthfactors hematopoieticstemcelldisorders hematopoieticstemcells hematopoieticsystem hemoglobin hemoglobinopathies hemoglobinopathy hemoglobinpolymorphisms hemoglobins leukemia leukocytes neoplastic physiology qh607i63c1979 qp92 regulation stemcells synthesis testing therapeuticuse transfusion w1an626yl2007 wh140a512h1989 wh140n84161983 wh190c74751984e wh380i6052h2003 wh380i6052h2007