Shanmuga Raju, P., Ramu, C., Harshavardhan, N. S., Rajender, K., & Sachin, G. (2018). Effects of low intensity pulsed ultrasound to reduce the effusion volumes and pain with knee osteoarthritis: a randomized controlled trial. International Journal of Research in Orthopaedics, 5(1), 77–80. https://doi.org/10.18203/issn.2455-4510.IntJResOrthop20185145