Circulating tumor DNA as an early marker of therapeutic response in patients with metastatic colorectal cancer

Jeanne Tie, I. Kinde, Y. Wang, H. L. Wong, J. Roebert, M. Christie, M. Tacey, R. Wong, M. Singh, C. S. Karapetis, J. Desai, B. Tran, R. L. Strausberg, L. A. Diaz, N. Papadopoulos, K. W. Kinzler, B. Vogelstein, P. Gibbs