Predictive value of HER2 serum levels in patients treated with lapatinib or trastuzumab-a translational project in the neoadjuvant GeparQuinto trial

I. Witzel^*, S. Loibl, G. Von Minckwitz, H. Eidtmann, T. Fehm, F. Khandan, S. Schmatloch, M. Hauschild, J. Bischoff, P. A. Fasching, C. Mau, C. Schem, B. Rack, I. Meinhold-Heerlein, C. Liedtke, T. Karn, J. Huober, C. Zu Eulenburg, Y. Issa-Nummer, M. UntchV. Müller

^*Corresponding author for this work