1. I Clinical Neurology Unit, Department of Health Sciences, Aldo Ravelli Research Centre University of Milan, San Paolo University Hospital, ASST Santi Paolo e Carlo Milan Italy
2. Neurology 5/Neuropathology Unit Fondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
3. Radiology UOC, San Carlo Borromeo Hospital ASST Santi Paolo e Carlo Milan Italy
4. Cerebrovascular Unit Carlo Besta Neurological Institute, Scientific Institute for Research and Health Care Foundation Milan Italy