1. Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
4. Department of General, Visceral, and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
5. Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany