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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Carcinoma, Squamous Cell / mortality
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Carcinoma, Squamous Cell / radiotherapy*
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Fast Neutrons / therapeutic use*
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Female
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Follow-Up Studies
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Head and Neck Neoplasms / mortality
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Head and Neck Neoplasms / radiotherapy*
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Humans
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Lymphatic Metastasis / radiotherapy
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Male
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Middle Aged
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Neoplasm Recurrence, Local / mortality
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Neoplasm Recurrence, Local / radiotherapy*
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Palliative Care
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Radiotherapy Dosage
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Survival Analysis
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Time Factors