1. Department of Neurology, Medical University of Warsaw, Warsaw, Poland
2. Neurodegenerative Diseases Research Group, Medical University of Warsaw, Warsaw, Poland
3. Institute of Clinical Science, Neurosciences, Umeå University, Umeå, Sweden
4. Faculty of Science, Tehran University, Tehran, Iran
5. Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
6. Department of Neurology, University of Massachusetts Medical School, Worcester, MA, USA
7. Division of Neurology, Department of Internal Medicine, Jichi Medical University, Shomotsuke, Japan, and
8. Laboratory of Neurogenetics, Department of Neurodegenerative Disorders, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland