Rizk HM, AL-Deen MS, Emam AA. Pulp Revascularization/Revitalization of Bilateral Upper Necrotic Immature Permanent Central Incisors with Blood Clot vs Platelet-rich Fibrin Scaffolds—A Split-mouth Double-blind Randomized Controlled Trial. Int J Clin Pediatr Dent 2020; 13 (4):337-343.