Fig. 1From: Proposal and validation of a modified staging system to improve the prognosis predictive performance of the 8th AJCC/UICC pTNM staging system for gastric adenocarcinoma: a multicenter study with external validationA flow diagram illustrating the selection process for the training cohort of gastric cancer from 3 Chinese institutions. n1 the number of patients from Sun Yat-sen University Cancer Center, n2 the number of patients from the First Hospital of China Medical University, n3 the number of patients from Tianjin Medical University Cancer Institute and Hospital, R0 resection complete resection of the tumor with microscopically negative surgical marginsBack to article page