[1] Royal Melbourne Hosp, MS Ctr, Melbourne, Australia
[2] Univ Melbourne, CORE, Melbourne, Australia
[3] St Vincents Hosp, Neurol, Sydney, Australia
[4] Univ Sydney, Sydney, Australia
[5] St Vincents Hosp, Haematol, Sydney, Australia
[6] Univ Ottawa, Ottawa Hosp Res Inst, Ottawa, ON, Canada
[7] Gen Univ Hosp, Prague, Czech Republic
[8] Charles Univ Prague, Dept Neurol, Prague, Czech Republic
[9] Ctr Clin Neurosci, Prague, Czech Republic
[10] Charles Univ Prague, Dept Haematol, Prague, Czech Republic
[11] Univ Hosp Kralovske Vinohrady, Prague, Czech Republic
[12] Uppsala Univ Hosp, Neurol, Uppsala, Sweden
[13] Austin Hlth, Neurol, Melbourne, Australia
[14] Univ Melbourne, Melbourne, Australia
[15] Austin Hlth, Haematol, Melbourne, Australia
[16] Haukeland Hosp, Neurol, Bergen, Norway
[17] Haukeland Hosp, Haematol, Bergen, Norway
[18] Sheffield Teaching Hosp NHS Fdn Trust, Dept Neurol, Sheffield, England
[19] Sheffield Teaching Hosp NHS Fdn Trust, Dept Haematol, Sheffield, England