Hello! Exactly! However, there has been also a lot of research that has built upon this 2019 paper -- here is a nice review article that touches on what we now

Hello! Exactly! However, there has been also a lot of research that has built upon this 2019 paper -- here is a nice review article that touches on what we now know about changes in CSF and how that is coupled with neurodegenerative diseases. https://doi.org/10.1016/j.smrv.2021.101572 https://doi.org/10.1016/j.smrv.2021.101572