[1] McMaster Univ, Hamilton, ON, Canada
[2] Natl & Kapodistrian Univ Athens, Dept Neurol 2, Athens, Greece
[3] Geisinger Hlth Syst, Neurosi Inst, Danville, PA USA
[4] NYU Langone Hlth, Dept Neurol, New York, NY USA
[5] Feil Family Brain & Mind Rsch Inst, Clin & Translat Neurosci Unit, New York, NY USA
[6] Dept Neurol, New York, NY USA
[7] GHU Paris Psychiat & Neurosci, Dept Neurol, Paris, France
[8] Maurizio Bufalini Hosp, Cesena, Italy
[9] Natl Univ Singapore, Singapore, Singapore
[10] Univ Ioannina, Ioannina, Greece
[11] Democritus Univ Thrace, Alexandroupolis, Greece
[12] Natl & Kapodistrian Univ Athens, Med Sch, Athens, Greece
[13] Natl & Kapodistrian Univ Athens, Sch Med, Dept Hyg Epidemiol & Med Stat, Athens, Greece
[14] Univ Tennessee, Hlth Sci Ctr, Dept Neurol, Memphis, TN 38163 USA
[15] Natl & Kapodistrian Univ Athens, Dept Internal Med 4, Athens, Greece