1. Department of Radiology, Center for Lymphatic Imaging, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
2. Division of Interventional Radiology, Department of Medical Imaging, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware
3. Department of Radiology and Pediatrics, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
4. Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea