Burkhardt Barbara E U, Arnold Raoul, Schlensak Christian, Bökenkamp Regina, Stiller Brigitte
Department of Congenital Heart Disease and Pediatric Cardiology, University Hospital Freiburg, Freiburg, Germany.
Circulation. 2012 Apr 24;125(16):e591-4. doi: 10.1161/CIRCULATIONAHA.111.062570.