1. University and Institute for Research and Medical Care IRCCS San Raffaele Roma Italy
2. National Parkinson Foundation Centre of Excellence King's College London UK
3. Department of Neurology Karolinska University Hospital Stockholm Sweden
4. Rankin Park Centre John Hunter Hospital Newcastle Australia
5. Department of Neurology County Emergency Clinic Hospital Brasov and Faculty of Medicine Transilvania University Brasov Brasov Romania
6. Carlos III Institute of Health Madrid Spain