Dr. Chandanpreet Kaur,1 Dr. Anshul Dahuja,2 Dr. Neetu Kukar 3, Dr. Kapil Bansal 2, Dr. Jagdeep Singh2. Comparison Between the Effects of Intra Articular Platelet Rich Plasma and Combination of Platelet Rich Plasma and Hyaluronic Acid in the Treatment of Mild to Moderate Osteoarthritis of the Knee: A Two-Year Prospective Study on Functional Outcome. ijmscrr 2023, 6, Page: 880-887.