[1] Krankenanstalt Rudolfstiftung Wien, Vienna, Austria
[2] Danube Univ Krems, Krems, Austria
[3] Oslo Univ Hosp, Dept Neurol, Oslo, Norway
[4] Univ Oslo, Fac Div Ulleval, Oslo, Norway
[5] Univ Antwerp Hosp, Dept Neurol, Antwerp, Belgium
[6] VIB, Dept Mol Genet, Antwerp, Belgium
[7] Univ Antwerp, Inst Born Bunge, Neurogenet Lab, B-2020 Antwerp, Belgium
[8] Ist Neurol Carlo Besta, Fdn IRCCS, Unit Biochem & Genet Neurogenet & Metab Dis, Milan, Italy
[9] Grp Hosp Pitie Salpetriere, AP HP, Ctr Reference Canalopathies Musculaires, F-75634 Paris, France
[10] Hadassah Univ Hosp, Dept Neurol, IL-91120 Jerusalem, Israel
[11] Mater Misericordiae Univ, Dublin Neurol Inst, Beaumont Hosp, Dublin, Ireland
[12] Mater Misericordiae Univ, Dublin Neurol Inst, Mater Private Hosp, Dublin, Ireland
[13] Univ Tubingen, Ctr Neurol, Tubingen, Germany
[14] Univ Tubingen, Hertie Inst Clin Brain Res, Dept Neurodegenerat Dis, Tubingen, Germany
[15] Neurol Inst Carlo Besta, IRCCS Fdn, Div Mol Neurogenet, Milan, Italy
[16] Pandy Cty Hosp, Dept Neurol & Cerebrovasc Dis, Gyula, Hungary
[17] Inst Neurol, Dept Neurodegenerat Dis, London WC1N 3BG, England
[18] Natl Hosp Neurol & Neurosurg, London WC1N 3BG, England
[19] Univ Oslo, Univ Hosp, Fac Div Ulleval, Oslo, Norway
[20] Univ Bern, Dept Neurol, Bern, Switzerland