Two-step artificial intelligence system for endoscopic gastric biopsy improves the diagnostic accuracy of pathologists oleh Yan Zhu, Yan Zhu, Wei Yuan, Chun-Mei Xie, Wei Xu, Jia-Ping Wang, Li Feng, Hui-Li Wu, Pin-Xiang Lu, Zi-Han Geng, Zi-Han Geng, Chuan-Feng Lv, Quan-Lin Li, Quan-Lin Li, Ying-Yong Hou, Wei-Feng Chen, Wei-Feng Chen, Ping-Hong Zhou, Ping-Hong Zhou