N P. Trigger Point Injection with 1% versus 2% Lidocaine for Treatment of Myofascial Pain Syndrome at Neck and Upper Back: A Randomized Controlled and Double-blinded Clinical Trail. ASEAN J Rehabil Med [internet]. 2019 Dec. 16 [cited 2026 Sep. 18];29(3):99-106. available from: https://he01.tci-thaijo.org/index.php/aseanjrm/article/view/198015