Impact of T and N substage on survival and disease relapse in adjuvant rectal cancer: A pooled analysis

Leonard L. Gunderson, Daniel J. Sargent, Joel E. Tepper, Michael J. O'Connell, Cristine Allmer, Steven R. Smalley, James A. Martenson, Daniel G. Haller, Robert J. Mayer, Tyvin A. Rich, Jaffer A. Ajani, John S. Macdonald, Richard M. Goldberg