The pattern for development of various types of blood cells in the bone marrow. (BFU-E—burst-forming unit-erythroid; CFU-GM—colony-forming unit-granulocyte-macrophage; CFU-mega—colony-forming unit-megakaryocyte; EPO—erythropoietin; EPOR—surface component of the erythropoietin receptor; FLT-3L—fms-like tyrosine kinase 3 ligand; G-CSF—granulocyte colony-stimulating factor; GM-CSF—granulocyte-macrophage colony-stimulating factor; IL— interleukin; M-CSF—macrophage colony-stimulating factor; TPO....