1. Department of Clinical Sciences Lund, Orthopedics, Lund University, Skane University Hospital, Lund, Sweden
2. Department of Health and Welfare, Arcada University of Applied Sciences, Helsinki, Finland
3. Endurhaefing, Rehabilitation Centre of Excellence, Kopavogur, Iceland
4. Centre for Alcohol and Drug Research, Aarhus University, Aarhus, Denmark
5. Cerebral Palsy Follow-up Program, Department of Neurosciences for Children, Oslo University Hospital, Oslo, Norway
6. The Norwegian Cerebral Palsy Association, Oslo, Norway
7. Faculty of Medicine, Research Center of Habilitation and Rehabilitation Models and Services (CHARM), University of Oslo, Oslo, Norway