No abstract available
MeSH terms
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Adult
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Aged
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Carcinoma, Squamous Cell / epidemiology
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Ear Neoplasms / epidemiology
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Esophageal Neoplasms / epidemiology*
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Female
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Humans
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Laryngeal Neoplasms / epidemiology
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Male
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Middle Aged
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Mouth Neoplasms / epidemiology
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Neoplasms, Multiple Primary / epidemiology*
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Nose Neoplasms / epidemiology
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Otorhinolaryngologic Diseases / epidemiology*
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Pharyngeal Neoplasms / epidemiology