Fig. 2. The proportion of esophageal motility disorder diagnosis; (A) Chicago classification version 3.0 (CC v3.0) and (B) Chicago classification version 4.0 (CC v4.0). EGJOO, esophagogastric junction outflow obstruction; IEM, ineffective esophageal motility; WNL, within normal limit.
© J Neurogastroenterol Motil
