[1] Univ Autonoma Barcelona, Hosp Univ Vall dHebron, Multiple Sclerosis Ctr Catalonia Cemcat, Barcelona, Spain
[2] Univ Autonoma Barcelona, VHIR, Dept Neurol Neuroimmunol, Barcelona, Spain
[3] Univ Autonoma Barcelona, Hosp Univ Vall dHebron, Barcelona, Spain
[4] Univ Autonoma Barcelona, VHIR, Dept Radiol, Sect Neuroradiol, Barcelona, Spain