Mireles-Rocha, Homero, et al. “UVB Photoprotection With Antioxidants: Effects of Oral Therapy With D-Alpha-Tocopherol and Ascorbic Acid on the Minimal Erythema Dose”. Acta Dermato-Venereologica, vol. 82, no. 1, May 2002, pp. 21-24, doi:10.1080/000155502753600830.