1. Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
2. Faculty of Medicine, University of Coimbra, Coimbra, Portugal
3. Documentation Service, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
4. Department of Medical Imaging, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
5. Coimbra Institute for Biomedical Imaging and Translational Research, Institute for Nuclear Sciences Applied to Health, University of Coimbra, Coimbra, Portugal
6. Center for Neurosciences and Cell Biology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal