![Reply to Letters Regarding Article, "Risk of Assessing Mortality Risk in Elective Cardiac Operations: Age, Creatinine, Ejection Fraction, and the Law of Parsimony"]()
Reply to Letters Regarding Article, "Risk of Assessing Mortality Risk in Elective Cardiac Operations: Age, Creatinine, Ejection Fraction, and the Law of Parsimony"Ranucci, M.; Castelvecchio, S.; Menicanti, L.; Frigiola, A.; Pelissero, G. · Circulation · 2010