Jarosław Sławek, MD, PhD, Professor at Medical University of Gdańsk, Head of Neurolgy & Stroke Dpt. St. Adalbert Hospital, Gdańsk, Poland. Past President of Polish Neurological Society. Secretary of International Association of Parkinsonism and Related Disorders (IAPRD). Member of Polish Neurological Society, MDS and EAN. Major interests: movement disorders (Parkinson’s Disease, atypical parkinsonisms, dementia in movement disorders, botulinum toxin treatment, Huntington;s Disease)