Proungvitaya, Siriporn, Natchanok Khatkham, Chakkarin Thinglan, Papawadee Hong Ard, Duangrudee Changtrakun, Limthong Promdee, Wisut Kungwantrakul, and Tanakorn Proungvitaya. “Estimated Glomerular Filtration Rate Using Creatinine Levels Determined by Enzymatic and Jaffe Kinetic Methods”. Srinagarind Medical Journal 30, no. 4 (October 27, 2015): 339–343. Accessed May 20, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/41387.