Wadhwa M, Ranganathan A. Exercise alone versus combined with transcranial or trans-spinal direct current stimulation for cervicogenic headache: a randomized controlled trial protocol. Brain Imaging and Stimul. [Internet]. 2025 Dec. 1 [cited 2025 Dec. 5];4:e6402. Available from: https://journals.bahiana.edu.br/index.php/brain/article/view/6402