[1] Univ Fed Parana, Hosp Clin, Curitiba, Parana, Brazil
[2] Paracelsus Med Univ Salzburg, Dept Neurol, Salzburg, Austria
[3] Univ Gothenburg, Inst Clin Neurosci & Physiol, Sahlgrenska Acad, Gothenburg, Sweden
[4] Univ Bonn, Med Ctr, Epileptol, Bonn, Germany
[5] Bial Portela & Ca SA, Res & Dev, Coronado, Portugal
[6] Univ Porto, Fac Med, Porto, Portugal