Paolo Zamboni1, Robert Zivadinov2. 1. Vascular Diseases Centre and Post Graduated School in Vascular Surgery, Azienda Ospedaliera Universitaria di Ferrara, S. Anna Hospital, University of Ferrara, Ferrara, Italy. Electronic address: paolozamboni@icloud.com. 2. Buffalo Neuroimaging Analysis Centre, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, NY, USA; Centre for Biomedical Imaging at the Clinical Translational Science Institute, State University of New York at Buffalo, NY, USA.