No abstract available
MeSH terms
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Botulinum Toxins / administration & dosage*
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Esophageal Spasm, Diffuse / diagnosis
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Esophageal Spasm, Diffuse / drug therapy*
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Esophagoscopy
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Follow-Up Studies
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Humans
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Injections, Intralesional
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Prospective Studies
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Sensitivity and Specificity
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Severity of Illness Index
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Treatment Outcome