Huebschmann, N., Luoto, T., Karr, J., Berghem, K., Blennow, K., Zetterberg, H., … Iverson, G. Comparing Glial Fibrillary Acidic Protein (GFAP) in Serum and Plasma Following Mild Traumatic Brain Injury in Older Adults. Frontiers in Neurology, 11, 1054. https://doi.org/10.3389/fneur.2020.01054 (Original work published 2020)