Harnphadungkit, K., Akarasereenont, P., Chadvongvan, P. and Chotiyarnwong, C. (2018) “Efficacy of 0.0125% Capsaicin Patch at Acupuncture Point for Pain Relief in Knee Osteoarthritis: A Randomized Controlled Trial”, Siriraj Medical Journal, 70(5), pp. 382–390. available at: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/152638 (accessed: 20 September 2026).