Falk, V., Fann, J. I., Grünenfelder, J., & Burdon, T. A. (2000). Endoscopic Doppler for Detecting Vessels in Closed Chest Bypass Grafting. The Heart Surgery Forum, 3(4), E331-E333. Retrieved from https://journal.hsforum.com/index.php/HSF/article/view/6511