Loss of phosphatase and tensin homolog or phosphoinositol-3 kinase activation and response to trastuzumab or lapatinib in human epidermal growth factor receptor 2 - Overexpressing locally advanced breast cancers

Bhuvanesh Dave, Ilenia Migliaccio, M. Carolina Gutierrez, Meng Fen Wu, Gary C. Chamness, Helen Wong, Archana Narasanna, Anindita Chakrabarty, Susan G. Hilsenbeck, Jian Huang, Mothaffar Rimawi, Rachel Schiff, Carlos Arteaga, C. Kent Osborne, Jenny C. Chang