No abstract available
MeSH terms
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Aged
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Alcoholism / complications
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Carcinogens
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Carcinoma / epidemiology*
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Carcinoma / etiology
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Carcinoma, Squamous Cell / epidemiology*
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Carcinoma, Squamous Cell / etiology
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Esophageal Neoplasms / epidemiology*
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Esophageal Neoplasms / etiology
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Female
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Humans
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Male
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Meat-Packing Industry
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Middle Aged
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Nebraska
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Nitrates
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Nitrites
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Occupational Diseases / epidemiology
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Socioeconomic Factors
Substances
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Carcinogens
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Nitrates
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Nitrites