Gupta, M., Mishra, P. K., Shoeb, M., Agarwal, A., & Prasad, J. (2017). A comparison of clinical outcomes of LVEF ≤35% versus LVEF>35% in off-pump coronary artery bypass graft surgery. International Surgery Journal, 4(6), 1908–1912. https://doi.org/10.18203/2349-2902.isj20172011