PHONGVIVAT P. The result of local twitch response during treatment of myofascial pain syndrome in the upper trapezius muscle by trigger point injection technique: A retrospective study. Reg11MedJ [Internet]. 2021 Nov. 1 [cited 2024 May 5];35(2). Available from: https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/250011