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Langhammer, Bettina Michaela; Huber, Christoph; Windecker, Stephan; Carrel, Thierry (2016). Surgical antegrade transcatheter mitral valve implantation for symptomatic mitral valve disease and heavily calcified annulus. European journal of cardio-thoracic surgery, ezw265. Oxford University Press 10.1093/ejcts/ezw265