Fernández-Varela-Gómez, F., A. Sandoval-García, and K. Valeria Cabrera-Rios. “Signs of Skin Aging: A Review”. International Journal of Research in Medical Sciences, vol. 12, no. 7, June 2024, pp. 2674-9, doi:10.18203/2320-6012.ijrms20241935.