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

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Fig. 6. Distal esophageal spasm. Premature contractions (distal latency [DL] < 4.5 seconds) in at least 20% of swallows.
Journal of Neurogastroenterology and Motility 2017;23:487~494 https://doi.org/10.5056/jnm17026
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