No abstract available
MeSH terms
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Biopsy, Needle
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Esophageal Diseases / diagnosis
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Esophageal Diseases / pathology*
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Esophagoscopy / methods
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Female
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Follow-Up Studies
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Humans
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Immunohistochemistry
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Melanocytes / pathology*
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Middle Aged
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Monitoring, Physiologic / methods
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Pigmentation Disorders / etiology
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Pigmentation Disorders / pathology*
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Precancerous Conditions / pathology*
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Risk Assessment