NCT03349021
- Conditions
- Constriction, Pathologic, Esophagostenosis, Pathological Conditions, Anatomical, +1 more
- Locations
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- Universitätklinikum Ulm Ulm, Baden-Wurttemberg, Germany
- Marienhospital Essen, Germany
- Southhamptan University Hospital Southhampton, United Kingdom