1. First Faculty of Medicine, Department of Neurology and Center of Clinical Neuroscience, Charles University and General University Hospital, Prague, Czech Republic
2. First Faculty of Medicine, Institute of Nuclear Medicine, Charles University and General University Hospital, Prague, Czech Republic
3. First Faculty of Medicine, Department of Medical Physics, Charles University and General University Hospital, Prague, Czech Republic
4. Department of Radiology, Na Homolce Hospital, Prague, Czech Republic