Arbildo, H., Gamarra, L., Rojas, S., Infantes, E., Lamas, C. and Vásquez, H. 2017. Clinical effect of platelet rich fibrin in the treatment of periodontal intrabony defects. Systematic review and meta-analysis. Journal of Oral Research. 6, 5 (May 2017), 127-135. DOI:https://doi.org/10.17126/joralres.2017.036.