M. Benjapibal, S. Korpraphong, M. Chuchotirot, I. Suphanit, and P. Vichaidith, “Accuracy of Residual Urine Measurement in Post-operative Gynecological Patients by Normal Saline Instillation versus Re-catheterization”, Siriraj Med J, vol. 53, no. 3, pp. 125–129, Aug. 2020.