Sherrill B, Amonkar M, Sherif BN, Maltzman J, O'Rourke L, Johnston S. A q-twist analysis of lapatinib plus letrozole compared with letrozole alone as first-line therapy in hormone receptor positive (HR+) metastatic breast cancer (MBC). Poster presented at the Joint 15th Congress of the European Cancer Organization and 34th Congress of the European Society for Medical Oncology; September 25, 2009.