- Presence of the BCR-ABL mutation Glu255Lys prior to STI571 (imatinib) treatment in patients with Ph+ acute lymphoblastic leukemia. Hofmann, W.K., Komor, M., Wassmann, B., Jones, L.C., Gschaidmeier, H., Hoelzer, D., Koeffler, H.P., Ottmann, O.G. Blood (2003)