IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-9-52427 Original Research Paper Comparison Of Efficacy Of Intra Articular Injection With Platelet-Rich Plasma, High Molecular Weight Hyaluronic Acid And Methylprednisolone In Osteoarthritis Of Knee. Pati Dr. J. Panda Dr. September 2023 12 9 01 02