Chaiyasoot, W. and Yothatip, J. (2008) “Comparison of Color Doppler Ultrasound with Digital Subtraction Angiography”, Siriraj Medical Journal, 60(3), pp. 121–125. available at: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246368 (accessed: 12 October 2026).