Skin protection against UV radiation using thin films of cerium oxide E. Ortiz, L. Martínez-Gómez, J.F. Valdés-Galicia, R. García, M. Anzorena and L. Martínez de la Escalera Radioprotection, 54 1 (2019) 67-70 Published online: 12 March 2019 DOI: 10.1051/radiopro/2019002