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(a) Materials utilized for the procedure Dermapen (model: Dr.pen Ultima A-6), disposable cartridges, EMLA cream, falcon tube, neubauer chamber, RBC pipette and sterile syringe. (b) 3.8% sodium citrate (as an anticoagulant was used for platelet rich plasma preparation), 1% ammonium oxalate (as diluent during platelet counting). (c) Centrifugation machine (model: REMI R-8C). RBC: Red Blood Cell.
