Saejong, R., Suksri, K. and Thamlikitkul, V. (2020) “Effect of Fermented Milk Containing Probiotics on Constipation Symptoms and Immune System in Subjects with Constipation”, Siriraj Medical Journal, 64(4), pp. 105–109. available at: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/244170 (accessed: 20 September 2026).