[1] Inst Nacl Neurol & Neurocirug Manuel Velasco Su, Dept Neurol, Mexico City, DF, Mexico
[2] Inst Nacl Neurol & Neurocirug Manuel Velasco Su, Dept Infect Dis, Mexico City, DF, Mexico
[3] Inst Nacl Neurol & Neurocirug Manuel Velasco Su, Dept Neuroimmunol, Mexico City, DF, Mexico