[1] Univ Verona, Dept Neurol & Movement Sci, Sect Clin Neurol, I-37134 Verona, Italy
[2] Franz Tappeiner Hosp, Dept Neurol, Meran O, Italy
[3] Fed Teaching Hosp, Dept Neuropsychiat, Abakaliki, Ebonyi State, Nigeria
[4] Paracelsus Med Univ, Christian Doppler Clin, Dept Neurol, Salzburg, Austria