(Q44210923)
Statements
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Validation of the Charlson comorbidity index in patients with head and neck cancer: a multi-institutional study (English)
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Singh B
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Bhaya M
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Stern J
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Roland JT
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Zimbler M
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Rosenfeld RM
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Har-El G
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Lucente FE
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1 November 1997
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Identifiers
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