No abstract available
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Female
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Head and Neck Neoplasms / diagnosis
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Head and Neck Neoplasms / mortality*
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Head and Neck Neoplasms / therapy
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Humans
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Male
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Middle Aged
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Neoplasms, Multiple Primary / diagnosis
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Neoplasms, Multiple Primary / mortality*
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Neoplasms, Multiple Primary / therapy
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Prognosis
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Proportional Hazards Models