1. Edmond J. Safra Program in Parkinson’s Disease and the Morton and Gloria Shulman Movement Disorders Centre, Toronto Western Hospital, UHN, Division of NeurologyUniversity of Toronto Toronto Ontario Canada
2. Krembil Brain Institute Toronto Ontario Canada
3. Fondazione IRCCS Policlinico San Matteo Pavia Italy
4. UOS Clinical Nutrition Pini‐CTO, Milan Italy
5. Fondazione Grigioni per il Morbo di Parkinson Italy
6. Parkinson Institute Pini‐CTO, Milan Italy