Unai, S., G. Cook, H. Hirose, N. Cavarocchi, and J. Entwistle. “Two-Vessel Off-Pump Coronary Artery Bypass Grafting by Left Thoracotomy in a Complex Reoperative Case”. The Heart Surgery Forum, vol. 17, no. 2, May 2014, pp. E77-E79, doi:10.1532/HSF98.2013308.