Espinosa-Martín, L., Espinosa-Espinosa, H.M. and Jiménez-Molina, M.A. (2019) “Wine red color Tongue”, CEUS Scientific Journa, 1(2), pp. 23–24. Available at: https://ceus.ucacue.edu.ec/index.php/ceus/article/view/11 (Accessed: 12 November 2026).