Zand, Vahid, et al. “Antibacterial Efficacy of Different Concentrations of Sodium Hypochlorite Gel and Solution on Enterococcus Faecalis Biofilm”. Iranian Endodontic Journal, vol. 11, no. 4, Sept. 2016, pp. 315-9, doi:10.22037/iej.v11i4.11881.