No abstract available
MeSH terms
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Aged
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Carcinoma, Squamous Cell / genetics*
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Cell Line, Transformed
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Chromosome Aberrations*
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Chromosome Banding
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Epithelium / ultrastructure
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Esophageal Neoplasms / genetics*
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Esophagus / ultrastructure*
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Female
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Humans
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Karyotyping
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Male
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Middle Aged
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Precancerous Conditions / genetics*