Prospective registry validating the reproducibility of mitral paravalvular leak measurements in a standardized real-time three-dimensional transesophageal echocardiography algorithm for optimal choice of the closure device - Pysz, Piotr; Kozłowski, Michał; Malczewska, Magdalena; Adamczyk-Filipek, Eliza; Wojakowski, Wojciech; Smolka, Grzegorz (Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej, 2019)