Loss of nuclear localized and tyrosine phosphorylated Stat5 in breast cancer predicts poor clinical outcome and increased risk of antiestrogen therapy failure

Amy R. Peck, Agnieszka K. Witkiewicz, Chengbao Liu, Ginger A. Stringer, Alexander C. Klimowicz, Edward Pequignot, Boris Freydin, Thai H. Tran, Ning Yang, Anne L. Rosenberg, Jeffrey A. Hooke, Albert J. Kovatich, Marja T. Nevalainen, Craig D. Shriver, Terry Hyslop, Guido Sauter, David L. Rimm, Anthony M. Magliocco, Hallgeir Rui