1. Translational Neuroradiology Unit; National Institute of Neurological Disorders and Stroke, National Institutes of Health; Bethesda MD
2. Neuroimaging Research Unit; Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University; Milan Italy
3. Department of Neurosciences Drug Research and Child's Health; University of Florence; Florence Italy