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Figure 6: Timed barium swallow phase of esophagography after ingestion of 250 mL of low-density barium in a patient with liquid dysphagia after Collis gastroplasty and Nissen fundoplication. Anteroposterior three-on-one spot radiographs in upright position (1, 2, and 5 = 1, 2, and 5 minutes, respectively) after barium ingestion show poor esophageal emptying.