DOI resolved by resea

Validation of a combined comorbidity index

Validation of a combined comorbidity index on resea.org. DOI 10.1016/0895-4356(94)90129-5. Mary E. Charlson, Ted P. Szatrowski, Janey C. Peterson, Jeffrey P. Gold.

Mary E. Charlson, Ted P. Szatrowski, Janey C. Peterson, Jeffrey P. Gold

https://resea.org/10.1016/0895-4356(94)90129-5

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Abstract

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