Kiathirannon, N., et al. “Loss of Compressibility by Ultrasonography in Deep Venous Thrombosis of the Lower Extremities: A Prospective Evaluation”. The ASEAN Journal of Radiology, vol. 1, no. 1, Mar. 2023, pp. 53-58, https://asean-journal-radiology.org/index.php/ajr/article/view/223.