Affiliations: 1st Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland
Note: [] Correspondence to: Magdalena Restel, 1st Department of Neurology, Institute of Psychiatry and Neurology, ul. Sobieskiego 9, 02-957 Warsaw, Poland, Tel.: +48 22 45 82 548; Fax. +48 22 45 82 566; E-mail: magda.restel@gmail.com