Increased brain cholinergic innervation in isolated REM sleep behaviour disorder from prodromal multiple system atrophy.

Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Ronald Postuma reports relationships involving consulting or advisory and speaking and lecture fees with Quebec Health Research Fund, Takeda Pharmaceutical Company Limited, Biogen, AbbVie Inc, Curasan AG, Eli Lilly, and Company, Novartis, Eisai Inc, Paladin, Merck, Vaxxinity, Korro Bio, Ventus Therapeutics, Bristol Myers Squibb Co, and International Parkinson and Movement Disorder Society. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.