Safety and feasibility of a novel multilectrode array catheter in mapping atrial and ventricular arrhythmias with high density: results from the multi-center OPTIMUM study - Vijgen, J; Rackauskas, G; Dilling-Boer, D; Sarkozy, A; Ciconte, G; Vicedomini, GG; Pappone, C (Europace (London, England), 2022)