1 Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland; Graduate School for Health Sciences, University of Bern, Switzerland.
2 Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland.
3 Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland; Center for Rare Disorders, Institute of Clinical Chemistry Inselspital, Bern University Hospital, University of Bern, Switzerland.
4 Center for Rare Disorders, Institute of Clinical Chemistry Inselspital, Bern University Hospital, University of Bern, Switzerland; University Children's Hospital Pediatric Endocrinology, Diabetology and Metabolism, Bern, Switzerland.
5 Department of Neuroradiology, Inselspital, Bern University Hospital, University of Bern, Switzerland.
6 Department of Human Genetics, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
7 Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland. Electronic address: gerd.tinkhauser@insel.ch.