No abstract available
MeSH terms
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Adolescent
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Barium Sulfate
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Contrast Media
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Deglutition Disorders / etiology
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Esophageal Achalasia / complications
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Esophageal Achalasia / diagnostic imaging*
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Humans
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Male
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Tomography, X-Ray Computed
Substances
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Contrast Media
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Barium Sulfate