Effects of Transcutaneous Electrical Nerve Stimulation (Tens) and Therapeutic Ultrasound (US) Given Concurrently (Combination Therapy) Versus Consecutively on Pain and Disability in Patients with Osteoarthritis Knee- A Randomized Clinical Trial. (2021). Indian Journal of Physiotherapy and Occupational Therapy - An International Journal, 16(1), 37-44. https://doi.org/10.37506/ijpot.v16i1.17746