[1] McMaster Univ, Dept Pathol & Mol Med, Hamilton, New Zealand
[2] Hamilton Hlth Sci Corp, Hamilton Reg Lab Med Program, Hamilton, New Zealand
[3] HCH Res Ctr, Hamilton, New Zealand
[4] McMaster Univ, Med Ctr, Dept Med, Div Neurol, Hamilton, New Zealand
[5] Univ Western Ontario, Dept Pathol, London, ON, Canada
[6] Univ Western Ontario, Dept Clin Neurol Sci, London, ON, Canada
[7] Doce Octubre Hosp, Neurol Serv, Madrid, Spain