[1] Karolinska Inst, Dept Med Biochem & Biophys, Div Vasc Biol, Stockholm, Sweden
[2] Med Univ Graz, Dept Gen Neurol, Graz, Austria
[3] Karolinska Univ Hosp, Ctr Mol Med, Dept Clin Neurosci, Stockholm, Sweden
[4] Stockholm Hlth Serv, Ctr Neurol, Acad Specialist Ctr, Stockholm, Sweden