[1
]
Department of Radiology, Children's Hospital of Philadelphia, University of Pennsylvania
Perelman School of Medicine, 3401 Civic Center Blvd., Philadelphia, PA, USA. bikod@email.chop.edu.
[2
]
Division of Cardiology, Children's Hospital of Philadelphia, University of Pennsylvania
Perelman School of Medicine, Philadelphia, PA, USA.
[3
]
Department of Radiology, Children's Hospital of Philadelphia, University of Pennsylvania
Perelman School of Medicine, 3401 Civic Center Blvd., Philadelphia, PA, USA.