Toumpoulis, Ioannis K., Constantine E. Anagnostopoulos, Demosthenes G. Katritsis, Hani Shennib, Joseph J. DeRose, and Daniel G. Swistel. 2005. “Influence of Innovative Techniques on Midterm Results in Patients With Minimally Invasive Direct Coronary Artery Bypass and Off-Pump Coronary Artery Bypass”. The Heart Surgery Forum 7 (1):E27-E32. https://doi.org/10.1532/hsf.1062.