Paudel, S., R. K. Ghimire, O. B. Panta, and A. Pokharel. “Retrospective Study of Renal Artery Doppler Evaluation of Hypertensive Patients”. Nepalese Journal of Radiology, vol. 6, no. 1-2, Feb. 2018, pp. 1-5, doi:10.3126/njr.v6i1-2.19208.