1. Department of Pediatric Cardiology and Congenital Heart Diseases, German Heart Center Munich at the Technical University Munich, Munich, Germany.
2. Department of Pediatrics and Cardiovascular Research Institute, UC San Francisco, San Francisco, California.
3. Vascular Biology Center, Medical College of Georgia, Augusta, Georgia.
4. Department of Cardiac Surgery, German Heart Center Munich at the Technical University Munich, Germany.
5. Faculty of Chemistry/Biochemistry, University of Kaiserslautern, Kaiserslautern, Germany, and the Department of Biochemistry, University of Oulu, Oulu, Finland.