Institution: | 1. Department of Cardiology, Klinikum Westfalen, Heart Center Westfalen, Dortmund, Germany;2. Department of Cardiology and Vascular Medicine, University Clinic Essen, West-German Heart and Vascular Center, Essen, Germany;3. Department of Cardiology and Angiology, University Clinic Bergmannsheil, Ruhr University, Bochum, Germany;1. Ward Family Heart Center, Children''s Mercy Hospital, Kansas City, Missouri;2. Children''s Heart Center, Ann & Robert H. Lurie Children''s Hospital of Chicago, Chicago, Illinois;3. Division of Biostatistics, Children''s Mercy Hospital, Kansas City, Missouri;4. Children''s National Heart Institute, Washington, District of Columbia |