Affiliation: | 1. Institute of Medical Genetics, University of Zürich, Zurich, Switzerland;2. Department of Medical Genetics, Oslo University Hospital, Oslo, Norway;3. Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas;4. Department of Pediatrics, Odense University Hospital, Odense, Denmark;5. Department of Clinical Genetics, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark;6. Pediatric Neurology, Children's Hospital, Lucerne, Switzerland |