Francesco Brigo1, Stanley C Igwe2, Raffaele Nardone3. 1. Department of Neurological and Movement Sciences, Section of Clinical Neurology, University of Verona, Italy; Department of Neurology, Franz Tappeiner Hospital, Meran/o, Italy. Electronic address: dr.francescobrigo@gmail.com. 2. Department of Neuro-Psychiatry, Federal Teaching Hospital, Abakaliki, Ebonyi State, Nigeria. 3. Department of Neurology, Franz Tappeiner Hospital, Meran/o, Italy; Department of Neurology, Christian Doppler Clinic, Paracelsus Medical University, Salzburg, Austria.