Correspondence to: Mikael Dellborg, MD, PhD, Department of Molecular and Clinical Medicine/Cardiology, Sahlgrenska University Hospital/Östra, Diagnosvägen 11, SE-416 50 Gothenburg, Sweden. Email

E-mail Address: [email protected]

https://orcid.org/0000-0001-6502-8838

Institute of Medicine, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden (M.D., K.W.G., P.E., M.F., A.A., A.R., Z.M.).

Adult Congenital Heart Disease Unit, Sahlgrenska University Hospital, Gothenburg, Sweden. (M.D., P.E., A.A., Z.M.)