RT Journal Article SR Electronic T1 Signal Transduction Pathways Regulating Hematopoietic Differentiation JF Pharmacological Reviews JO Pharmacol Rev FD American Society for Pharmacology and Experimental Therapeutics SP 1 OP 20 VO 50 IS 1 A1 Thomas E. Smithgall YR 1998 UL http://pharmrev.aspetjournals.org/content/50/1/1.abstract AB