No abstract available
MeSH terms
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Adenocarcinoma / epidemiology
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Adenocarcinoma / pathology*
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Biopsy
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Carcinoma, Squamous Cell / epidemiology
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Carcinoma, Squamous Cell / pathology*
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China / epidemiology
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Esophageal Neoplasms / epidemiology
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Esophageal Neoplasms / pathology*
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Esophagus / pathology
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Humans
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Incidence
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Neoplasm Staging
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Ultrasonography / methods
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United States / epidemiology