[1] Toulouse Univ Hosp, Clin Invest Ctr, F-31073 Toulouse, France
[2] Toulouse Univ Hosp, Dept Clin Pharmacol, INSERM, U455, F-31073 Toulouse, France
[3] Rush Presbyterian St Lukes Med Ctr, Dept Neurol Sci, Chicago, IL 60612 USA
[4] Univ Miami, Dept Neurol, Miami, FL 33152 USA
[5] Univ Innsbruck, Dept Neurol, A-6020 Innsbruck, Austria
[6] Fac Med Lisbon, Inst Pharmacol & Therapeut, Lisbon, Portugal