Evaluation of four CD22 antibodies as ricin a chain‐containing immunotoxins for the in vivo therapy of human B‐cell leukemias and lymphomas

G. L. Shen, J. L. Li, M. A. Ghetie, V. Ghetie, R. D. May, M. Till, A. N. Brown, M. Relf, P. Knowles, J. W. Uhr, G. Janossy, P. Amlot, E. S. Vitetta, P. E. Thorpe