No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Carcinoma, Squamous Cell / mortality
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Carcinoma, Squamous Cell / therapy*
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Combined Modality Therapy
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Follow-Up Studies
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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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Middle Aged
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Neoplasm Recurrence, Local / epidemiology