Thapak, Gourav, et al. “A Comparative Evaluation of Smear Layer Removal Using Erbium:YAG Laser-Activated Irrigation, Sonic Irrigation, and Manual Dynamic Irrigation: A Scanning Electron Microscope Study: Comparative Evaluation of Smear Layer Removal”. Journal of Lasers in Medical Sciences, vol. 12, June 2021, p. e22, https://journals.sbmu.ac.ir/jlms/article/view/27601.