Updating and validating the Charlson comorbidity index and score for risk adjustment in hospital discharge abstracts using data from 6 countries.
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Bing Li | Hude Quan | Patrick Graham | Kiyohide Fushimi | Vijaya Sundararajan | Phil Hider | Jean-Marie Januel | K. Fushimi | H. Quan | B. Li | V. Sundararajan | P. Hider | P. Graham | C. Couris | J. Januel | Chantal M Couris | Bing Li
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