Seed amplification assay results illustrate discrepancy in Parkinson's disease clinical diagnostic accuracy and error rates.

"Declarations Conflicts of interestDr. Jensen consults for Prometheus Laboratories, Sharp Healthcare, and Adaptive Biotechnologies, and holds no patent rights and stocks with these entities. Dr. Concha is an inventor on several patents related to SAA technology. All authors are associated with Amprion Inc., a biotech company focused on the development and commercial utilization of SAA technology. Conflicts of interest Dr. Jensen consults for Prometheus Laboratories, Sharp Healthcare, and Adaptive Biotechnologies, and holds no patent rights and stocks with these entities. Dr. Concha is an inventor on several patents related to SAA technology. All authors are associated with Amprion Inc., a biotech company focused on the development and commercial utilization of SAA technology."

"Funding This work was supported by the National Institute of Neurological Disorders and Stroke of the National Institutes of Health under Award Number U44NS111672 and the Michael J. Fox Foundation for Parkinson’s Research Grant MJFF-020475."