Variant of ventricular outflow tract ventricular arrhythmias requiring ablation from multiple sites: Intramural origin

Luigi Di Biase, Jorge Romero, Erica S. Zado, Juan Carlos Diaz, Carola Gianni, Patrick M. Hranitzki, Javier E. Sanchez, Sanghamitra Mohanty, Amin Al-Ahmad, Prasant Mohanty, Chintan Trivedi, Domenico Della Rocca, Pasquale Santangeli, J. David Burkhardt, Fermin C. Garcia, Francis E. Marchlinski, Andrea Natale