Rouhani, Armita, Majid Akbari, and Aida Farhai-faz. 2016. “Comparison of Tooth Discoloration Induced by Calcium-Enriched Mixture and Mineral Trioxide Aggregate”. Iranian Endodontic Journal 11 (3):175-78. https://doi.org/10.22037/iej.v11i3.10749.