Kosan, Pitcha, Kaan Tangtiang, and Amolchaya Kwankua. “Correlation of the Standard Deviation of Urinary Stone Density by Non-Contrast Computed Tomography and the Shock Wave Lithotripsy Outcomes”. Science & Technology Asia 25, no. 3 (September 21, 2020): 87-96. Accessed October 24, 2020. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/223265.