[1] Auckland City Hosp, Dept Neurol, Auckland, New Zealand
[2] Univ Med Ctr, Inst Clin Neurophysiol, Div Neurol, Ljubljana, Slovenia
[3] Hosp Cent State Univ San Luis Potosi, Fac Med, San Luis Potosi, Mexico
[4] Univ Med Ctr, Neurol Dept, Tbilisi, Georgia
[5] Palmerston North Hosp, Dept Neurol, Palmerston North, New Zealand
[6] All India Inst Med Sci, Dept Neurol, Delhi, India
[7] St Vincents Hosp, Dept Med, Melbourne, Vic, Australia
[8] Univ Wales Hosp, Dept Neurol, Cardiff, S Glam, Wales
[9] Mario Negri Inst Pharmacol Res, Pharmacol Res, Milan, Italy
[10] EpiNet Study Grp, Dept Neurol, Auckland, New Zealand