Fig. 1

Flowchart for patients with early gastric neoplasia who underwent ESD. ESD = Endoscopic submucosal Dissection, EGC = early gastric cancer, JGCA = Japanese Gastric Cancer Association, UD = Undifferentiated, U = Ulcer, SM1= Submucosal invasion < 500 μm LVI = Lympho-vascular invasion, UL= Ulceration, LNM = lymph node metastasis type