CJCP     2010 12 (11):  897-901    ISSN: 1008-8830  CN: 43-1301/R Effects of bone marrow stromal cells and VLA-4 antibody on apoptosis of childhood leukemia cells LI Zhong-Xia, JIA Xiu-Hong, LI Jian-Chang, HAN Lin Department of Pediatrics, Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong 256603, China. Email:jiaxiuhong001@163.com Received: null  Revised: null  Online: null Supporting info