No abstract available
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Esophageal Motility Disorders / physiopathology*
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Esophagus / physiopathology*
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Female
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Humans
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Male
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Manometry
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Middle Aged
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Peristalsis
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Sodium Pertechnetate Tc 99m
Substances
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Sodium Pertechnetate Tc 99m