Collagen Membrane And Leukocyte Platelet Rich Fibrin For Periodontal Regeneration In An In-frabony Defect: A Case Report. Journal of Pharmaceutical Negative Results [Internet]. 2023 Jan. 1 [cited 2026 Jun. 9];:376-83. Available from: https://mail.pnrjournal.com/index.php/home/article/view/7188