Hanson Kerry M.; Gratton Enrico; Bardeen Christopher J. «Sunscreen enhancement of UV-induced reactive oxygen species in the skin». Free Radical Biology and Medicine, 41, 8, 2006, pàg. 1205–12. DOI: 10.1016/j.freeradbiomed.2006.06.011. PMID: 17015167.
Hanson Kerry M.; Gratton Enrico; Bardeen Christopher J. «Sunscreen enhancement of UV-induced reactive oxygen species in the skin». Free Radical Biology and Medicine, 41, 8, 2006, pàg. 1205–12. DOI: 10.1016/j.freeradbiomed.2006.06.011. PMID: 17015167.