1 Electrophysiology Program, Pennsylvania State University Heart and Vascular Institute, Penn State Health Children's Hospital, Penn State University College of Medicine, and The Milton S. Hershey Medical Center, Hershey, Pennsylvania.
2 Electrophysiology Program, Pennsylvania State University Heart and Vascular Institute, Penn State Health Children's Hospital, Penn State University College of Medicine, and The Milton S. Hershey Medical Center, Hershey, Pennsylvania. Electronic address: gnaccarelli@pennstatehealth.psu.edu.