1. Research Center for Habilitation and Rehabilitation Models and Services (CHARM); Institute of Health and Society; University of Oslo; Oslo Norway
2. The Cerebral Palsy Follow-up Program (CPOP); Department of Neurosciences for Children; Oslo University Hospital; Oslo Norway
3. Department of Clinical Services; St. Olavs Hospital; Trondheim University Hospital; Trondheim Norway
4. Department of Clinical and Molecular Medicine; Faculty of Medicine and Health Sciences; Norwegian University of Science and Technology; Trondheim Norway
5. Institute of Basic Medical Sciences; University of Oslo; Oslo Norway
6. Faculty of Health Sciences; Oslo and Akershus University College of Applied Sciences; Oslo Norway
7. Neuropediatric Unit; Department of Women's and Children's Health; Karolinska Institutet; Stockholm Sweden