1. Department of Medicine IV, Faculty of Medicine Medical Center‐University of Freiburg Freiburg Germany
2. Department of Medical Genetics Oslo University Hospital, University of Oslo Oslo Norway
3. Division of Pediatric and Adolescent Medicine Oslo University Hospital, University of Oslo Oslo Norway
4. Klinik für Kinder‐ und Jugendmedizin Universitätsklinikum Münster Münster Germany
5. Department of Radiation Biology, Division of Cancer Medicine, Surgery and Transplantation, Institute for Cancer Research Oslo University Hospitals–Norwegian Radium Hospital Oslo Norway
6. Department of Neurohabilitation Oslo University Hospital Oslo Norway
7. Section of Pediatric Ophthalmology and Low Vision, Department of Ophthalmology University of Saarland Homburg Germany
8. Medizinische Genetik Mainz Limbach Genetics Mainz Germany
9. Department of Pediatrics, Seattle Children's Research Institute University of Washington Seattle Washington USA
10. Center for Human Disease Modeling Duke University Medical Center Durham North Carolina USA
11. Department of Nephrology and Hypertension University Medical Center Utrecht Utrecht The Netherlands
12. International Radboud Institute for Molecular Life Sciences Radboud University Nijmegen Nijmegen The Netherlands
13. Oslo Centre for Biostatistics and Epidemiology, Institute for Basic Medical Sciences University of Oslo Oslo Norway
14. Institute of Anatomy University of Zurich Zurich Switzerland