Amornpinyokiat T. A Comparison of the Efficacy of Diclofenac Phonophoresis and Ultrasound Therapy in Upper Trapezius Myofascial Pain Syndrome: A Double-Blinded Randomized Controlled Trial. ASEAN J Rehabil Med [internet]. 2021 Oct. 8 [cited 2026 Sep. 29];31(3):85-9. available from: https://he01.tci-thaijo.org/index.php/aseanjrm/article/view/249861