Oliveira, C. M., A. L. A. Dantas, and B. M. Dantas. “A Methodology to Evaluate Occupational Internal Exposure to Fluorine-18”. Cellular and Molecular Biology, vol. 55, no. 3, Nov. 2009, pp. 29-33, https://cellmolbiol.org/index.php/CMB/article/view/1023.