Prophylactic Implantation of Intra-aortic Balloon Counterpulsation in High-Risk Cardiac Surgery Patients: A Single-Center Experience - Müller, P.; Kondruweit, M.; Harig, F.; Tandler, R.; Rösch, J.; Weyand, M.; Heim, C. (The Thoracic and Cardiovascular Surgeon, 2022)