CJCP     2013 15 (6):  444-447    ISSN: 1008-8830  CN: 43-1301/R Therapeutic effect of clofarabine in children with relapsed or refractory acute lymphoblastic leukemia SUO Pan, ZHANG Le-Ping, WU Jun, LU Ai-Dong, WANG Bin, ZUO Ying-Xi, CHENG Yi-Fei, LIU Gui-Lan Department of Pediatrics, Peking University People′s Hospital, Beijing 100044, China. zhanglep@yahoo.com Received: null  Revised: null  Online: null Supporting info