Regurgitation of the Atrioventricular Valves after Corrective Surgery for Complete Atrioventricular Septal Defects - Comparison of Different Surgical Techniques - Krasemann, T; Debus, V; Rellensmann, G; Rukosujew, A; Scheld, H -H; Vogt, J; Tjan, T D T (The Thoracic and Cardiovascular Surgeon, 2007)