IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-8-51758 Original Research Paper Functional Outcome Of Intraarticular Platelet-Rich Plasma In Grade 1 And Grade 2 Osteoarthritis Knee Joints Rajgopalan Dr. P.Ravi Shankar Dr. August 2023 12 8 01 02