Emmert, M. Y., Emmert, L. S., Martinez, E. C., Lee, C. N. and Kofidis, T. (2010) “Off-Pump Coronary Bypass Surgery Is Safe in Patients with a Low Ejection Fraction (?25%)”, The Heart Surgery Forum, 13(3), pp. E136-E142. doi: 10.1532/HSF98.20091178.