1. Cerebral Palsy Alliance Research Institute Discipline of Child and Adolescent Health The University of Sydney Sydney New South WalesAustralia
2. South Australian Birth Defects Register Women’s and Children’s HospitalWomen’s and Children’s Health Network Adelaide South Australia Australia
3. Department of Pediatrics Institute of Clinical Sciences Sahlgrenska AcademyUniversity of Gothenburg GothenburgSweden
4. Regional Rehabilitation Centre for Children and Adolescents Queen Silvia's Children’s HospitalSahlgrenska University Hospital Gothenburg Sweden
5. Cerebral Palsy Registry of NorwayVestfold Hospital Trust TønsbergNorway
6. Department of Clinical and Molecular Medicine Norwegian University of Science and Technology Trondheim Norway
7. Telethon Kids InstituteUniversity of Western Australia Perth Western AustraliaAustralia
8. Grace Centre for Newborn Intensive Care The Children’s Hospital at Westmead Sydney New South Wales Australia
9. Paediatric Department Hospital Lillebaelt Kolding Kolding Denmark