Patel, S., Boutry, C., Patel, P., Craven, M. P., Guo, B., Zafar, A., Kai, J., Smart, D., Butler, D., Higton, F., McNaughton, R., Briley, P. M., Griffiths, C., Nixon, N., Sayal, K., & Morriss, R. (2022). A randomised controlled trial investigating the clinical and cost-effectiveness of Alpha-Stim AID cranial electrotherapy stimulation (CES) in patients seeking treatment for moderate severity depression in primary care (Alpha-Stim-D Trial). Trials, 23(1), Article 250. https://doi.org/10.1186/s13063-022-06192-1