Sordo, Carlos, and César Gutiérrez. “Skin Cancer and Sun Radiation: Peruvian Experience in the Prevention and Early Detection of Sin Cancer and Melanoma”. Revista Peruana de Medicina Experimental y Salud Pública 30, no. 1 (February 7, 2014). Accessed May 1, 2024. https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/167.