Wik, Gunnar
Jortveit, Jarle
Sitras, Vasileios http://orcid.org/0000-0003-3264-3302
Døhlen, Gaute
Rønnestad, Arild E
Holmstrøm, Henrik http://orcid.org/0000-0003-4745-5267
Funding for this research was provided by:
The Norwegian Association for Children with Congenital Heart Disease, Oslo, Norway
Oslo University Hospital, Oslo, Norway
Sørlandet Hospital HF, Kristiansand, Norway