L. P. Perrault, N. Desjardins, C. Nickner, P. Geoffroy, J.-F. Tanguay, and M. Carrier, “Effects of Occlusion Devices for Minimally Invasive Coronary Artery Bypass Surgery on Coronary Endothelial Function of Atherosclerotic Arteries ”, HSF, vol. 3, no. 4, pp. E287-E292, Dec. 2000.