The esophageal bird’s beak sign
Crossref DOI link: https://doi.org/10.1007/s00261-016-1028-9
Published Online: 2017-01-02
Published Print: 2017-05
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Amiraian, Dana E.
DiSantis, David J.
Text and Data Mining valid from 2017-01-02