DOI:
10.1055/s-00035037
Methods of Information in Medicine
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References
Quan H, Li B, Couris CM, Fushimi K, Graham P, Hider P. et al.
Updating and validating the Charl- son comorbidity index and score for risk adjustment in hospital discharge abstracts using data from 6 countries.
American Journal of Epidemiology 2011;
173 (06) 676-682. PMID: 21330339.
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