Affiliation: | 1. Department of Pediatrics, Division of Pediatric Cardiology, Children''s Hospital of Philadelphia, Philadelphia, Pennsylvania;2. Technion Israel Institute of Technology, Haifa, Israel;3. Immunogenetics Laboratory, Department of Pathology and Laboratory Medicine, The Children''s Hospital of Philadelphia, Philadelphia, Pennsylvania;4. Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania |