Feedback from artificial intelligence improved the learning of junior endoscopists on histology prediction of gastric lesions oleh Thomas K.L. Lui, Kenneth K.Y. Wong, Loey L.Y. Mak, Elvis W.P. To, Vivien W.M. Tsui, Zijie Deng, Jiaqi Guo, Li Ni, Michael K.S. Cheung, Wai K. Leung