Zotov, A. S., D. V. Borisov, T. V. Klypa, M. V. Ilyin, and I. N. Staroverov. 2018. “Direct Myocardial Revascularization on the Working Heart and under the Artificial Blood Circulation in Patients With Unstable Angina”. Kremlin Medicine Journal, no. 1 (March), 120-27. https://kremlin-medicine.ru/index.php/km/article/view/1269.