Department of Digestive Diseases;
Hospital Universitario de León;
Department of Radiodiagnosis;
Hospital Universitario de León;
Department of Digestive Diseases;
Hospital Universitario Dr.Negrín;
Las Palmas de Gran Canaria;
35010;
Spain;
Burton Hospitals NHS Foundation Trust;
Burton on Trent;
Endoscopic; mucosal; resection; Barrett'sesophagus; Esophageal; cancer; Early; gastric; cancer; Stepwise; radical; endoscopic; resection; Multibandmucosectomy; Endoscopic; submucosal; dissection;