aDepartment of neurology, Toulouse University Hospital

bClinical Investigation Center, CIC1436, Toulouse University Hospital, F-CRIN/Strokelink Network, Toulouse

cToulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France

Correspondence to Nicolas Raposo, MD, PhD, Service de Neurologie, Hôpital Pierre-Paul Riquet, Centre Hospitalier Universitaire de Toulouse, Place Baylac, 31059 Toulouse Cedex 9, France. Tel: +33 5 61 77 76 40; e-mail: [email protected]