1. Medical Genetics; University Hospital Basel; Basel Switzerland
2. Pathology; University Hospital Basel; Basel Switzerland
3. Department of Medical Genetics; Oslo University Hospital and University of Oslo; Oslo Norway
4. Section of Paediatric Neurohabilitation; Department of Clinical Neurosciences for Children; Oslo University Hospital, Ullevål; Oslo Norway
5. Obstetrics and Gynecology; University Hospital Basel; Basel Switzerland
6. Institute for Medical and Human Genetics; Charité-Universitätsmedizin Berlin; Berlin Germany
7. Biozentrum and Swiss Institute of Bioinformatics; University of Basel; Basel Switzerland
8. Neonatology; University Children's Hospital Basel; Basel Switzerland
9. Centre for Prenatal Ultrasound; Basel Switzerland
10. Department of Ophthalmology; Section for Pediatric Ophthalmology; Oslo University Hospital, Ullevål; Oslo Norway
11. Section for Clinical Neurosciences; Department of Pediatrics; Oslo University Hospital and University of Oslo; Oslo Norway