1 Department of Adult Cardiac Surgery #2, S.V. Ochapowski Regional Hospital #1, Kuban State Medical University, 140 Rossiyskaya St, Krasnodar 350086, Russia. Electronic address: bolsy@rambler.ru.
2 Department of Adult Cardiac Surgery #2, Kuban State Medical University, Krasnodar, Russia.
3 Department of Adult Cardiac Surgery #2, S.V. Ochapowski Regional Hospital #1, Kuban State Medical University, Krasnodar, Russia.
4 Department of Thoracic Surgery, S.V. Ochapowski Regional Hospital #1, Krasnodar, Russia.