Hutter D, Kreiter B, Riedel T, Wagner B, Kadner A, Pfammatter J P
Center of Congenital Heart Disease, Departments of Cardiology and Cardiac Surgery, University Hospital of Bern , Switzerland .
Division of Pediatric Intensive Care Unit, Department of Pediatrics, University Children's Hospital of Bern , Switzerland .
Images Paediatr Cardiol. 2015 Oct-Dec;17(4):1-3.