Longitudinal hippocampal subfields, CSF biomarkers, and cognition in patients with Parkinson disease oleh Erik Erhardt, Anna Horner, Nicholas Shaff, Chris Wertz, Stephanie Nitschke, Andrei Vakhtin, Andrew Mayer, John Adair, Janice Knoefel, Gary Rosenberg, Kathleen Poston, Gerson Suarez Cedeno, Amanda Deligtisch, Sarah Pirio Richardson, Sephira Ryman