No abstract available
MeSH terms
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Age of Onset
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Autonomic Nervous System Diseases / diagnosis
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Autonomic Nervous System Diseases / genetics*
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Child
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DNA, Mitochondrial / analysis
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DNA, Mitochondrial / genetics*
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Disease Progression
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Esophageal Achalasia / diagnosis
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Esophageal Achalasia / genetics*
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Female
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Follow-Up Studies
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Humans
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Infant
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Male