Venskutonis, Tadas. “Periapical Tissue Evaluation: Analysis of Existing Indexes and Application of Periapical and Endodontic Status Scale (PESS) in Clinical Practice”. Giornale Italiano di Endodonzia 30, no. 1 (June 30, 2016): 14–21. Accessed April 26, 2024. https://www.giornaleitalianoendodonzia.it/gie/article/view/44.