Funding for this research was provided by:
National Institute on Aging (RFA057928)
National Institute of Neurological Disorders and Stroke (NS111205)
Received: 31 March 2020
Accepted: 15 June 2020
First Online: 16 July 2020
Ethics approval and consent to participate
: Not applicable.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. RFK is a co-editor in chief of <i>Fluids Barriers CNS</i>.