[1] Aarhus Univ Hosp, Dept Neurol, DK-8000 Aarhus, Denmark
[2] Aarhus Univ Hosp, Dept Clin Pharmacol, DK-8000 Aarhus, Denmark
[3] Copenhagen Univ Hosp, Dept Clin Neurophysiol, Rigshosp, Copenhagen, Denmark
[4] Karolinska Hosp, Dept Internal Med, Div Clin Pharmacol, Huddinge, Sweden
[5] Karolinska Hosp, Dept Clin Neurosci, Huddinge, Sweden
[6] Copenhagen Univ Hosp, Dept Neurol, Glostrup, Denmark