P Chevallier, N Robillard, S Wuilleme-Toumi, F Mechinaud, JL Harousseau, H Avet-Loiseau. Overexpression of Her2/neu is observed in one third of adult acute lymphoblastic leukemia patients and is associated with chemoresistance in these patients. Haematologica 2004;89(11):1399-1401; https://doi.org/10.3324/%x.