De Carlo Bello, Mariana Diagnostic Efficacy of Four Methods for Locating the Second Mesiobuccal Canal in Maxillary Molars. [electronic resource] - Iranian endodontic journal 2018 - 204-208 p. digital Publication Type: Journal Article ISSN: 1735-7497 Standard No.: 10.22037/iej.v13i2.16564 doi