Reduction of Homologous Blood Requirement in Cardiac Surgery by Intraoperative Aprotinin Application - Clinical Experience in 152 Cardiac Surgical Patients - Dietrich, W; Barankay, A; Dilthey, G; Henze, R; Niekau, E; Sebening, F; Richter, J A (The Thoracic and Cardiovascular Surgeon, 1989)