1 From the Departments of Cardiovascular Surgery (M.K., M.S., J.K., F.B.) and Congenital Heart Disease and Paediatric Cardiology (R.H., J.G.), Heart Centre Freiburg University, Freiburg, Germany. maximilian.kreibich@uniklinik-freiburg.de.
2 From the Departments of Cardiovascular Surgery (M.K., M.S., J.K., F.B.) and Congenital Heart Disease and Paediatric Cardiology (R.H., J.G.), Heart Centre Freiburg University, Freiburg, Germany.