1. Department of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands.
2. Department of Neurosurgery, Maastricht University Medical Center, Maastricht, the Netherlands.
3. European Graduate School of Neuroscience (EURON), Maastricht, the Netherlands.
4. Department of Physiotherapy, Portuguese Red Cross Health School, Lisbon, Portugal.
5. Department of Physiotherapy, School of Health Care, Setubal Polytechnic Institute, Setubal, Portugal.
6. Department of Medical Science, Faculty of Medicine, University of Girona (UdG), Girona, Spain.
7. Sequencing Analysis Support Core, Leiden University Medical Center, Leiden, the Netherlands.