Evaluation the predictive value of biomarkers for efficacy outcomes in response to pertuzumab and trastuzumab based therapy: An exploratory analysis of the tryphaena study - Schneeweiss, Andrea; Chia, Stephen; Hegg, Roberto; Tausch, Cristoph; Deb, Rahul; Ratnayake, Jayantha; Mcnally, Virginia; Ross, Graham; Kiermaier, Astrid; Cortés, Javier (Breast Cancer Research, 2014)