Wichianpitaya, Anuchit, and Yuen Tannirandorn. “Accuracy of Residual Urine Volume Measurement: Comparison Between Real-time Ultrasonography and Catheterization”. Thai Journal of Obstetrics and Gynaecology 15, no. 4 (April 20, 2017): 237–243. accessed September 29, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/83803.