Toumpoulis, I. K.; Anagnostopoulos, C. E.; Katritsis, D. G.; Shennib, H.; DeRose, J. J.; Swistel, D. G. Influence of Innovative Techniques on Midterm Results in Patients With Minimally Invasive Direct Coronary Artery Bypass and Off-Pump Coronary Artery Bypass. HSF 2005, 7, E27-E32.