Uyan, Hatice Miray, et al. “Comparative Evaluation of Postoperative Pain Intensity After Single-Visit and Multiple-Visit Retreatment Cases: A Prospective Randomized Clinical Trial”. Brazilian Dental Science, vol. 21, no. 1, Mar. 2018, pp. 26-36, doi:10.14295/bds.2018.v21i1.1515.