[1
]
Department of Global Public Health and Primary Care, Faculty of Medicine, University
of Bergen, Bergen, Norway.
[2
]
Department of Paediatrics, Haukeland University Hospital, Bergen, Norway.
[3
]
Department of Medical Science, University of Bergen, Bergen, Norway.
[4
]
Department of Heart Disease, Haukeland University Hospital, Bergen, Norway.
[5
]
Division of Mental and Physical Health, Norwegian Institute of Public Health, Bergen,
Norway.
[6
]
Department of Paediatrics, Oslo University Hospital, Oslo, Norway.
[7
]
Norwegian Institute of Public Health, Oslo, Norway.
[8
]
Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway.