Bidar, M., Sadeghi, G., Gharechahi, M., Mortazavi, M., & Forghani, M. (2010). In Vitro Comparison of Apical Leakage in Root Canals Obturated with 0.04 and 0.02 Tapered Gutta-Percha. Iranian Endodontic Journal, 5(3), 97–100. https://doi.org/10.22037/iej.v5i3.1829