Farag SS, Ruppert AS, Mrózek K, Carroll AJ, Pettenati MJ, Le Beau MM, Peterson BL, Powell BL, Ozer H, Silver RT, Larson RA, Bloomfield CD. Prognostic significance of additional cytogenetic abnormalities in newly diagnosed patients with Philadelphia chromosome-positive chronic myelogenous leukemia treated with interferon-alpha: a Cancer and Leukemia Group B study. Int J Oncol. 2004 Jul; 25(1):143-51.