Sun ZQ, Ma S, Zhou QB, Yang SX, Chang Y, Zeng XY, Ren WG, Han FH, Xie X, Zeng FY, Sun XT, Wang GX, Li Z, Zhang ZY, Song JM, Liu JB, Yuan WT. Prognostic value of lymph node metastasis in patients with T1-stage colorectal cancer from multiple centers in China. World J Gastroenterol 2017; 23(48): 8582-8590 [PMID: 29358866 DOI: 10.3748/wjg.v23.i48.8582]