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(A) The process of making PRF membrane. (1) PRF after centrifugation. (2) PRF separated. (B) The process of making cartilage defects, microfractures and transplantation of synovium-platelet rich fibrin (S-PRF). (3) Cartilage defect. (4) Cartilage defect and microfracture. (5) PRF Implantation. (6) Synovium Implantation over PRF.
