Funding for this research was provided by:
National Institute on Aging (P30 AG19610, RF AG051504, U01 AG046139)
National Institute of Neurological Disorders and Stroke (R01 NS080820, U24 NS072026, R35 NS097261-01)
Center for Individualized Medicine, Mayo Clinic
Arizona Department of Health Services (contract 211002)
Arizona Biomedical Research Commission (contracts 4001, 0011, 05-901, and 1001)
Michael J. Fox Foundation for Parkinson's Research
Mayo Clinic and Foundation
Received: 12 April 2018
Accepted: 25 June 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: This study uses autopsy material only and was approved by the Mayo Clinic institutional review board (IRB).
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.