Fig. 1. (A) Pharyngeal area when holding 1 ml of diluted barium in the mouth. (B) The same area at the point of maximum pharyngeal contraction while swallowing 5 ml of dilute barium. PA: Pharyngeal Area, PCR: Pharyngeal Constriction Ratio.

J Korean Dysphagia Soc 2022;12:45~49 https://doi.org/10.34160/jkds.2022.12.1.005

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