S. M. Fanta, E. V. Aksenov, and V. V. Lazorishinetz, “The Role of Additional Invasive Methods for Functional Verifications Shows to Repeat Revascularization in Patients with Coronary Artery Disease with Recurrent Angina after Coronary Artery Bypass Surgery”, ujcvs, no. 1 (24), pp. 20-24, May 2016.