Rueda, Gabriela, et al. “Effect of Mercurius-Heel®s on the Cytotoxicity of Human Gingival Fibroblasts in an in Vitro Model”. NOVA Biomedical Sciences Journal, vol. 11, no. 20, Dec. 2013, pp. 15-22, https://doi.org/10.22490/24629448.1027.