Natterer , J.; Schneider, J.; Sekarski, N.; Rathke, V.; Adams, M.; Latal, B.; Borradori-Tolsa, C.; Bouhabib, M.; Fuhrer Kradolfer, K.; Glöckler, M.; Hutter, D.; Kelly, J.; L’Ebraly, C.; Pfluger, M. R.; Polito, A.; von Rhein, M.; Knirsch , W. ORCHID (Outcome Registry for CHIldren With Severe Congenital Heart Disease) a Swiss, Nationwide, Prospective, Population-Based, Neurodevelopmental Paediatric Patient Registry: Framework, Regulations and Implementation. Swiss Med Wkly 2022, 152, w30217.