Long-term Follow-up of UFO-Procedure with the Jena Double Patch Technique for Treatment of Severe Concomitant Aortic and Mitral Valve Endocarditis - Caldonazo, T.; Mukharyamov, M.; Tasoudis, P.; Saqer, I.; Kirov, H.; Richter, M.; Diab, M.; Färber, G.; Fischer, J.; Doenst, T. (The Thoracic and Cardiovascular Surgeon, 2024)