1131PDPreliminary results of phase I/II study of SENL-B19 chimeric antigen receptor T cell therapy in pediatric and adult patients with relapsed/refractory acute lymphoblastic leukemia (r/r-ALL). (23rd October 2018) - Ma, F; Li, J; Ren, J; Zhang, X; Wang, F; Guo, X; Zhang, J; Wang, D; Liu, Q; Luo, J