Reply to: "Refutation of the αSyn-SAA-Based Staging for Parkinson's Progression (Neuronal α-Synuclein Disease-Integrated Staging System [NSD-ISS])"

Affiliations

• ¹ Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
• ² Department of Neurology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
• ³ Department of Neurology, Stanford University School of Medicine, Palo Alto, California, USA.
• ⁴ The Michael J. Fox Foundation for Parkinson's Research, New York, New York, USA.
• ⁵ University of Pennsylvania and the Parkinson's Disease and Mental Illness Research, Education and Clinical Centers (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA.
• ⁶ Institute for Neurodegenerative Disorders, New Haven, Connecticut, USA.