Accepted: 3 December 2019
First Online: 24 January 2020
: E.T. has received research grants from the Spanish Network on Neurodegenerative Disorders (CIBERNED, Instituto de Salud Carlos III) and the Michael J. Fox Foundation for Parkinson’s Research (USA), and has received consultation fees from Denali Therapeutics. M.V. has received research grants from the Ministry of Economy and Competitiveness (MINECO, Spain), the Michael J. Fox Foundation for Parkinson’s Research (USA) and La Caixa Banking Foundation (Spain). C.K. is a medical adviser to CENTOGENE for genetic testing reports in the fields of movement disorders and dementia, excluding Parkinson disease. O.R. has received honorarium for scientific advice to companies developing neuroprotective therapies for Parkinson disease, including Biogen, Cerespir, Denali Therapeutics, Roche and Sanofi. O.R. has received grants for research programmes in neuroprotection for Parkinson disease from the French Ministry of Health (Programme Hospitalier de Recherche Clinique), The European Commission (FP7, H2020 programmes) and the Cure Parkinson UK Foundation.