No abstract available
MeSH terms
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Catheterization / instrumentation
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Equipment Design
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Esophageal Neoplasms / complications
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Esophageal Neoplasms / diagnostic imaging*
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Esophageal Neoplasms / pathology
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Esophageal Stenosis / diagnostic imaging*
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Esophageal Stenosis / etiology
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Esophagus / pathology
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Humans
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Neoplasm Staging
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Ultrasonography / instrumentation