1. Department of Neurology, P.J. Safarik University , Kosice 04011 , Slovak Republic
2. Department of Neurology, University Hospital of L. Pasteur , Kosice 04011 , Slovak Republic
3. Neurology Department, Dr Benbadis University Hospital , Constantine 25018 , Algeria
4. King Faisal Specialist Hospital and Research Center , P.O. Box 3354, Riyadh 11211 , Saudi Arabia
5. Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health , Bethesda, MD 20892 , USA
6. Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/Consejo Superior de Investigaciones Científicas (CSIC)/Universidad de Sevilla , 41013, Seville , Spain
7. Preventive Neurology Unit, Centre for Prevention, Detection and Diagnosis, Wolfson Institute of Population Health, Queen Mary University of London , EC1M 6BQ, London , UK
8. Center for Alzheimer's and Related Dementias (CARD), National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health , Bethesda, MD 20892 , USA