Emmert, M. Y.; Salzberg, S. P.; Seifert, B.; Schurr, U. P.; Theusinger, O. M.; Hoerstrup, S. P.; Reuthebuch, O.; Genoni, M. Off-Pump Surgery Is Not a Contraindication for Patients With a Severely Decreased Ejection Fraction. HSF 2011, 14, E302-E306.