1. Department of Neurology, County Clinic Hospital, 500365 Brașov, Romania
2. Faculty of Medicine, Transilvania University, 500036 Brașov, Romania
3. Parkinson Foundation Centre of Excellence, King’s College, Denmark Hill Campus, King’s College Hospital, London SE5 9RT, UK
4. Department Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King’s College London, Cutcombe Road, London SE5 9RT, UK