Intramyocardial mapping of ventricular premature depolarizations via septal venous perforators: Differentiating the superior intraseptal region from left ventricular summit origins

Gustavo S. Guandalini, Pasquale Santangeli, Robert D. Schaller, Naga Venkata K. Pothineni, David Briceño, Andrés Enríquez, Pouyan Razminia, Roderick Tung, Francis E. Marchlinski, Fermin C. García