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A disease-specific comorbidity index for predicting mortality in patients admitted to hospital with a cardiac condition
Lorenzo Azzalini, Malorie Chabot-Blanchet, Danielle A. Southern, Anna Nozza, Stephen B. Wilton, Michelle M. Graham, Guillaume Marquis Gravel, Jean-Pierre Bluteau, Jean-Lucien Rouleau, Marie-Claude Guertin and E. Marc Jolicoeur