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. IJPOT 2021, 16 (1), 37-44. https://doi.org/10.37506/ijpot.v16i1.17746.