1. Department of NeurosurgeryUniversity Medical Center Utrecht Utrecht The Netherlands
2. Brain Technology Institute Utrecht The Netherlands
3. Departent of AnatomyRadboud University Medical Center Nijmegen The Netherlands
4. Department of AnatomyUniversity Medical Center Utrecht Utrecht The Netherlands
5. Department of RadiologyUniversity Medical Center Utrecht Utrecht The Netherlands
6. Department of PulmonologyHeilig Hart Ziekenhuis Mol Belgium