1 Division of Paediatric Neurosurgery, Department of Neurosurgery, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tubingen, Germany. julian.zipfel@med.uni-tuebingen.de.
2 Department of Neurosurgery, University Hospital Tübingen, Tubingen, Germany. julian.zipfel@med.uni-tuebingen.de.
3 Centre for Neurofibromatosis at the Centre of Rare Diseases, University Hospital and University of Tübingen, Tubingen, Germany. julian.zipfel@med.uni-tuebingen.de.
4 Department of Neurosurgery, University Hospital Tübingen, Tubingen, Germany.
5 Centre for Neurofibromatosis at the Centre of Rare Diseases, University Hospital and University of Tübingen, Tubingen, Germany.
6 Department of Paediatric Neurology, University Children's Hospital Tübingen, Tubingen, Germany.
7 Department of Neurology, University Hospital Tübingen, Tubingen, Germany.
8 Department of Paediatric Surgery, University Children's Hospital Tübingen, Tubingen, Germany.
9 Department of Maxillofacial Surgery, University Hospital Tübingen, Tubingen, Germany.
10 Neurofibromatosis Centre Hamburg, Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
11 Division of Paediatric Neurosurgery, Department of Neurosurgery, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tubingen, Germany.