Koochaki , Mahsa, et al. “Comparative Evaluation of the Effects of Antimicrobial Photodynamic Therapy With an LED and a Laser on the Proliferation of Human Gingival Fibroblasts on the Root Surface: An In Vitro Study: Photodynamic Therapy Effect on the Proliferation of Fibroblasts”. Journal of Lasers in Medical Sciences, vol. 12, Aug. 2021, p. e47, https://journals.sbmu.ac.ir/jlms/article/view/32322.