No abstract available
MeSH terms
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Carcinogens
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Carcinoma, Squamous Cell / etiology*
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Esophageal Neoplasms / etiology
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Humans
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Laryngeal Neoplasms / etiology
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Lung Neoplasms / etiology
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Mouth Neoplasms / etiology
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Neoplasms / etiology*
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Nicotiana
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Plants, Toxic
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Smoking*
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Urinary Bladder Neoplasms / etiology