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A short explanatory video by Dr. Charles Mok describing platelet-rich fibrin (PRF). The speaker explains that blood components (platelets, white and red blood cells, plasma) are separated by centrifugation using tubes that prevent platelet clotting; this yields a platelet-rich fibrin product with reduced red blood cells and some white blood cells. The PRF is injected into arthritic joints and—according to the speaker—can improve symptoms across a range from mild arthritis to bone-on-bone disease.










