Descriptive Rules for Achalasia of the Esophagus, June 2012: 4th Edition
Crossref DOI link: https://doi.org/10.1007/s10388-017-0589-1
Published Online: 2017-09-05
Published Print: 2017-10
Update policy: https://doi.org/10.1007/springer_crossmark_policy
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License valid from 2017-09-05