Efficacy of Intra-articular injections of Platelet Rich Plasma (PRP) in Osteoarthritis Knee. Journal title: Journal of Pakistan Orthopaedic Association Authors: Asad Ali Chaudhry1, Seemal Masood2, Shehreena Zabreen Butt3, Shehryar Khalid Hameed4, UmairAhmed5, M... Subject(s): Medicine