[1] Natl & Kapodistrian Univ Athens, Evangelismos Hosp, Sch Med, Dept Neurosurg 1, Athens, Greece
[2] Aristotle Univ Thessaloniki, Fac Philosophy, Sch Psychol, Thessaloniki, Greece
[3] Univ Hosp Patras, Sch Med, Dept Neurol & Psychiat, Patras, Greece
[4] Univ Ioannina, Sch Hlth Sci, Dept Speech & Language Therapy, Ioannina, Greece
[5] Aristotle Univ Thessaloniki, Fac Hlth Sci, Sch Med, Dept Neurol 1, Thessaloniki, Greece