Pirino, A., G. Maullu, P. Cossu Rocca, and A. Montella. “Histological Study on the Interactions Between an Agarose Gel Filler and the Human Skin: Observations Within a Year”. Italian Journal of Anatomy and Embryology, vol. 123, no. 1, Dec. 2018, p. 171, doi:10.13128/ijae-11489.