Amarttayakong, P., P. Prajaney, S. Iamsaard, W. Munkong, and S. Sangkhano. “The Association Between Circle of Willis Patterns and Ruptured Aneurysm Sites”. Srinagarind Medical Journal, vol. 33, no. 4, June 2018, pp. 314-9, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/130016.