Infrapyloric lymph node metastasis pattern in middle/lower gastric cancer: an exploratory analysis of a multicenter prospective observational study (IPA-ORIGIN) oleh Tasiken Baheti, Ru-Lin Miao, Gang Zhao, Da-Guang Wang, Feng-Lin Liu, Jiang Yu, Shuang-Yi Ren, Kai Ye, Su Yan, Kun Yang, Wei-Dong Zang, Lin Fan, Bin Liang, Jun Cai, Wei-Hua Fu, Wei Wang, Zheng-Rong Li, Zhao-Jian Niu, Jun You, Xing-Feng Qiu, Wu Song, Lu Zang, Qiang Shi