Fig. 3. Diagnostic flowchart plotted according to Chicago classification version 4.0 using the rapid drink challenge–integrated relaxation pressure (RDC-IRP) cutoff value determined using functional luminal imaging probe (FLIP) data. POEM, peroral endoscopic myotomy; EGJOO, esophagogastric junction outflow obstruction; IEM, ineffective esophageal motility.
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