Reply to: "Could Blood Hexosylsphingosine Be a Marker for Parkinson's Disease Linked with GBA1 Mutations"?. Issue 8 (18th August 2022) - Surface, Matthew; Balwani, Manisha; Waters, Cheryl; Haimovich, Alexander; Gan‐Or, Ziv; Marder, Karen S.; Hsieh, Tammy; Song, Linxia; Padmanabhan, Shalini; Hsieh, Frank; Merchant, Kalpana M.; Alcalay, Roy N.