Figure 1From: Is the prediction of prognosis not improved by the seventh edition of the TNM classification for colorectal cancer? Analysis of the surveilla006Ece, epidemiology, and end results (SEER) database Diagram of the major differences between the 6th and the 7th editions of the American Joint Committee on Cancer (AJCC-6 and AJCC-7, respectively) staging system for colorectal cancer. Back to article page