Derikvand, N., F. Bahramnejad, H. Mahmoudvand, and P. Jabbari moghadam. “Evaluation of Gingival Pigmentation Treatment Efficacy Using 980 Nm Diode Laser”. Journal of "Regeneration, Reconstruction & Restoration" (Triple R), vol. 4, no. 3, July 2019, pp. 98-101, doi:10.22037/rrr.v4i3.28661.