Arbildo, Heber, 		Gamarra, Luis, 		Rojas, Sandra, 		Infantes, Edwars, 		Lamas, Cèsar, AND 		Vásquez, Hernán.
" Clinical effect of platelet rich plasma in the treatment of periodontal intrabony defects. Systematic review and meta-analysis." <em>Journal of Oral Research</em> [Online], Volume 6 Number 4 (25 April 2017)