No abstract available
MeSH terms
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Deglutition Disorders / diagnostic imaging*
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Esophageal Achalasia / diagnostic imaging
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Esophagus / diagnostic imaging*
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Gastroesophageal Reflux / diagnostic imaging
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Humans
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Posture*
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Radionuclide Imaging
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Technetium Tc 99m Sulfur Colloid
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Time Factors
Substances
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Technetium Tc 99m Sulfur Colloid