Tjomsland, Ole, Rune Wiseth, Alexander Wahba, Arve Tromsdal, Stein O. Samstad, and Rune Haaverstad. 2005. “Intraoperative Color Doppler Ultrasound Assessment of Anastomoses of the Left Internal Mammary Artery to the Left Anterior Descending Coronary Artery During Off-Pump Coronary Artery Bypass Surgery Correlates With Angiographic Evaluation at the 8-Mont”. The Heart Surgery Forum 6 (5):375-79. https://doi.org/10.1532/hsf.959.