For citations:

Mikhaleva L.M., Fedorov E.D., Birukov A.E. Endoscopic and morphological prognostic factors of early gastric cancer. Experimental and Clinical Gastroenterology. 2019;(4):78-84. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-164-4-78-84