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Adaptation and validation of the Charlson Index for Read/OXMIS coded databases https://t.co/sJqfSI4XmJ #bmcfampract
Adaptation and validation of the Charlson Index for Read/OXMIS coded databases https://t.co/sJqfSI4XmJ #bmcfampract
The Charlson co-morbidity index, http://t.co/Uc058Ltl7R