Gonzalez S, Alonso-Lebrero JL, Del Rio R, Jaen P (julio de 2007). «Polypodium leucotomos extract: a nutraceutical with photoprotective properties». Drugs Today43 (7): 475-85. PMID17728848. doi:10.1358/dot.2007.43.7.1062667.
Middelkamp-Hup MA, Pathak MA, Parrado C, et al (diciembre de 2004). «Oral Polypodium leucotomos extract decreases ultraviolet-induced damage of human skin». J. Am. Acad. Dermatol.51 (6): 910-8. PMID15583582. doi:10.1016/j.jaad.2004.06.027.
Siscovick JR, Zapolanski T, Magro C, et al (junio de 2008). «Polypodium leucotomos inhibits ultraviolet B radiation-induced immunosuppression». Photodermatol Photoimmunol Photomed24 (3): 134-41. PMID18477132. doi:10.1111/j.1600-0781.2008.00352.x.
Mulero M, Rodríguez-Yanes E, Nogués MR, et al (agosto de 2008). «Polypodium leucotomos extract inhibits glutathione oxidation and prevents Langerhans cell depletion induced by UVB/UVA radiation in a hairless rat model». Exp. Dermatol.17 (8): 653-8. PMID18312382. doi:10.1111/j.1600-0625.2007.00684.x.
Gonzalez S, Alonso-Lebrero JL, Del Rio R, Jaen P (julio de 2007). «Polypodium leucotomos extract: a nutraceutical with photoprotective properties». Drugs Today43 (7): 475-85. PMID17728848. doi:10.1358/dot.2007.43.7.1062667.
Middelkamp-Hup MA, Pathak MA, Parrado C, et al (diciembre de 2004). «Oral Polypodium leucotomos extract decreases ultraviolet-induced damage of human skin». J. Am. Acad. Dermatol.51 (6): 910-8. PMID15583582. doi:10.1016/j.jaad.2004.06.027.
Siscovick JR, Zapolanski T, Magro C, et al (junio de 2008). «Polypodium leucotomos inhibits ultraviolet B radiation-induced immunosuppression». Photodermatol Photoimmunol Photomed24 (3): 134-41. PMID18477132. doi:10.1111/j.1600-0781.2008.00352.x.
Mulero M, Rodríguez-Yanes E, Nogués MR, et al (agosto de 2008). «Polypodium leucotomos extract inhibits glutathione oxidation and prevents Langerhans cell depletion induced by UVB/UVA radiation in a hairless rat model». Exp. Dermatol.17 (8): 653-8. PMID18312382. doi:10.1111/j.1600-0625.2007.00684.x.