Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

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Fig. 1. Changes in peristaltic wave amplitude before and after vardenafil or placebo ingestion. Vardenafil significantly decreased the amplitude of peristaltic waves at 5 and 10 cm above the lower esophageal sphincter (LES) and tended to decrease the amplitude at 15 cm above the LES.
J Neurogastroenterol Motil 2012;18:399~405 https://doi.org/10.5056/jnm.2012.18.4.399
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