1. Department of Otorhinolaryngology, Head and Neck Surgery, Inselspital University Hospital Bern and University of Bern Bern Switzerland
2. Department of Neurology, Inselspital University Hospital Bern and University of Bern Bern Switzerland
3. University Institute of Diagnostic and Interventional Neuroradiology, Inselspital University Hospital Bern and University of Bern Bern Switzerland
4. Department of Emergency Medicine, Inselspital University Hospital Bern and University of Bern Bern Switzerland