%0 Journal Article %T Normal aging in human lumbar discs: An ultrastructural comparison %A Edson A. Liberti %A Josemberg S. Baptista %A Ricardo B. V. Fontes %A Said R. Rabbani %A Vincent C. Traynelis %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0218121 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6586280/