Kunrath, M. F., N. Penha, and J. C. Ng. “Anodization As a Promising Surface Treatment for Drug Delivery Implants and a Non-Cytotoxic Process for Surface Alteration: A Pilot Study”. Journal of Osseointegration, vol. 12, no. 1, Jan. 2020, doi:10.23805/JO.2020.12.01.01.