S. Muniyappan, P. Muthupandi, K. Ramu, L. K. S., D. Boopalan, and M. Kuppusamy, “The efficacy of mud pack to eyes on cognitive functions among depressed adolescents: a study protocol for randomized controlled trial”, Int J Clin Trials, vol. 12, no. 3, pp. 210–214, Jul. 2025.