Healing of Extraction Sites after Alveolar Ridge Preservation Using Advanced Platelet-Rich Fibrin: A Retrospective Study oleh Antonia Samia Khaddour, Răzvan Eugen Ghiță, Mihaela Ionescu, Radu Gabriel Rîcă, Veronica Mercuț, Horia Octavian Manolea, Adrian Camen, Emma Cristina Drăghici, Andrei Radu, Sanda Mihaela Popescu