IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-4-48253 Original Research Paper The Effect Of Injecting Intra-Articular Platelet -Rich Plasma Or Prolotherapy On Pain Score And Function In Knee Osteoarthritis Smeeta Dr. Dr Gurulingappa A Patil Dr. April 2023 12 4 01 02