1. Department of Nursing Fluminense Federal University Rio de Janeiro Brazil
2. Department of Neurological Sciences Rush University Medical Center Chicago Illinois USA
3. Department of Community Health Sciences UCLA Fieldling School of Public Health Los Angeles California USA
4. Fight Parkinson's Surrey Hills Melbourne Australia
5. Department of Neurology, Faculty of Medicine P. J. Safarik University Kosice Slovak Republic
6. Department of Neurology University Hospital L. Pasteur Kosice Slovak Republic
7. Department of Clinical Neurosciences UCL Institute of Neurology London London UK
8. Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health Madrid Spain