Clinical Evaluation of Hypothermic Ventricular Fibrillation, Multi-Dose Blood Cardioplegia, and Single-Dose Bretschneider Cardioplegia in Coronary Surgery - Beyersdorf, F; Krause, E; Sarai, K; Sieber, B; Deutschländer, N; Zimmer, G; Mainka, L; Probst, S; Zegelman, M; Schneider, W; Satter, P (The Thoracic and Cardiovascular Surgeon, 1990)