“Effect of Anodal Transcranial Direct Current Stimulation Combined with Exercise in Adults with Chronic Non-specific Low Back Pain: A Randomized Controlled Trial”, PPCR, vol. 5, no. 2, pp. 58–66, Dec. 2019, Accessed: Apr. 09, 2025. [Online]. Available: https://journal.ppcr.org/index.php/ppcrjournal/article/view/89