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Fortin, Yannick, James A. G. Crispo, Deborah Cohen, Douglas S. McNair, Donald R. Mattison, och Daniel Krewski. "External Validation and Comparison of Two Variants of the Elixhauser Comorbidity Measures for All-cause Mortality." PLoS One 2017.

Fortin, Yannick, et al. "External Validation and Comparison of Two Variants of the Elixhauser Comorbidity Measures for All-cause Mortality." PLoS One 2017.