M. I. Ibrahim, “RETRO-AORTIC LEFT RENAL VEIN AS A CAUSE OF UNILATERAL DENSE PERSISTENT NEPHROGRAM: Unilateral Dense Persistent Nephrogram”, Pak Armed Forces Med J, vol. 65, no. 6, pp. 849–850, Dec. 2015, Accessed: Mar. 11, 2025. [Online]. Available: https://pafmj.org/PAFMJ/article/view/1204