Cover figure courtesy of Dazzi et al, "The Kinetics and Extent of Engraftment of Chronic Myelogenous Leukemia Cells in Non-Obese Diabetic/Severe Combined Immunodeficiency Mice Reflect the Phase of the Donor's Disease: An In Vivo Model of Chronic Myelogenous Leukemia Biology." Blast phase CML cells readily and overwhelmingly engraft NOD-SCID mouse marrow. Human CD45 staining of the marrow of NOD-SCID mice engrafted with blast phase human CML cells. 1390