1. Department of Medicine, Vanderbilt University, Nashville, TN 37232, USA.
2. Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA.
3. Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN 37232, USA.
4. Department of Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, TN 37232, USA.
5. Houston Methodist Cancer Center, Houston, TX 77030, USA.
6. Foundation Medicine, Cambridge, MA 02142, USA.
7. Departments of Pathology and Medicine, Yale University, New Haven, CT 06520, USA.
8. Oncosalud, Lima 41, Perú.
9. Instituto Nacional de Enfermedades Neoplásicas (INEN), Lima 34, Perú.