Chirila C, Odom D, Devercelli G, Khan S, Sherif B, Kaye J, Molnar I, Sherrill B. Meta-analysis of the validity of progression-free survival as a surrogate endpoint for overall survival in metastatic colorectal cancer trials. Poster presented at the 35th European Society for Medical Oncology Congress; October 12, 2010. [abstract] Ann Oncol. 2010 Oct; 21(suppl 8):623P.