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Objective The American Joint Committee on Cancer(AJCC)staging system is the most frequently used predictive model for gallbladder cancer(GBC).The 8th edition of the AJCC staging system for GBC has been used in clinical practice,but we have found some deficiencies in the new edition,including the inaccurate stratification of N2 disease and the aberrant survival reversal of ⅢA and ⅢB patients.