[1] Fdn Jimenez Diaz, Epilepsy Unit, E-28040 Madrid, Spain
[2] Hosp Clin Barcelona, Epilepsy Unit, Barcelona, Spain
[3] Univ Oviedo, Hosp Cent Asturias, E-33080 Oviedo, Spain
[4] Hosp Marques Valdecilla, Neuropediatr Unit, Santander, Spain
[5] Hosp Puerto Real, Dept Neurol, Cadiz, Spain
[6] Clin Univ, Epilepsy Unit, Pamplona, Spain
[7] Hosp Virgen Rocio, Neuropediatr Unit, Seville, Spain