1. Department of Neurology; Inselspital, Bern University Hospital; and University of Bern; Bern Switzerland
2. Institute of Pathology; University of Bern; Bern Switzerland
3. Department of Plastic and Hand Surgery; Inselspital, Bern University Hospital; and University of Bern; Bern Switzerland
4. Institute of Surgical Pathology; University Hospital Zurich; Zurich Switzerland
5. Institute of Diagnostic and Interventional Neuroradiology; Inselspital, Bern University Hospital, and University of Bern; Bern Switzerland