Emmert MY, Emmert LS, Martinez EC, Lee CN, Kofidis T. Off-Pump Coronary Bypass Surgery Is Safe in Patients with a Low Ejection Fraction (?25%). HSF [Internet]. 2010Jun.9 [cited 2024Apr.19];13(3):E136-E142. Available from: https://journal.hsforum.com/index.php/HSF/article/view/226