Mongkolsomlit, S. and Rawdaree, J. (2011) “How to Detect and Handle Confounding Factors”, Vajira Medical Journal : Journal of Urban Medicine, 54(2), pp. 223–235. available at: https://he02.tci-thaijo.org/index.php/VMED/article/view/452 (accessed: 6 April 2025).