1. Department of Neuroradiology; Charité - Universitätsmedizin Berlin; Berlin Germany
2. Section for Medical Physics, Department of Radiation Therapy; Universitätsklinikum Essen; Essen Germany
3. MSB Medical School Berlin; Berlin Germany
4. Department of Neurology; Charité - Universitätsmedizin Berlin; Berlin Germany
5. Department of Neuroradiology; Evangelisches Krankenhaus Bielefeld; Bielefeld Germany
6. Department of Systems Neuroscience; University Medical Center Hamburg-Eppendorf; Hamburg Germany