Mitral valve repair with the edge‐to‐edge technique: A 20 years single‐center experience. - Sideris, Konstantinos; Burri, Melchior; Prinzing, Anatol; Voss, Stephanie; Krane, Markus; Guenzinger, Ralf; Lange, Ruediger; Voss, Bernhard (Journal of Cardiac Surgery, 2021)