Gastroenterology and Digestive Endoscopy Unit;
Riuniti Marche North Hospital;
Pesaro 61121;
Italy;
Gastrointestinal Endoscopy Unit;
Humanitas-Mater Domini;
Castellanza 21053;
Italy;
Digestive Endoscopy Unit;
Humanitas Clinical and Research Center;
Humanitas University;
Rozzano 20089;
Italy;
Endoscopic submucosal dissection; Western experience; Early gastric cancer; Curative oncological excision; Long-term outcome; Training perspective;