Tariq, Rabia, et al. “Comparison of Diagnostic Accuracy of Colour Doppler Twinkling Artefact With Computed Tomography of the Kidney, Ureters, and Bladder in Detection of Nephrolithiasis in Emergency Setup–Point of Care Ultrasonography”. Pakistan Armed Forces Medical Journal, vol. 74, no. 1, Feb. 2024, pp. 104-7, doi:10.51253/pafmj.v74i1.10304.