Bonaros, Nikolaos, Thomas Schachner, Armin Öhlinger, Guy Friedrich, Günther Laufer, and Johannes Bonatti. “Assessment of Health-Related Quality of Life After Coronary Revascularization”. The Heart Surgery Forum 8, no. 5 (September 19, 2005): E380-E385. Accessed September 19, 2020. https://journal.hsforum.com/index.php/HSF/article/view/395.