Sharma P, Shrestha B, Ansari M, Singh D, Singh B. Evaluation of Renal Venous Impedance, Pyelocalyectasis and Their Correlation during Pregnancy Using Doppler Ultrasound Examination: A Case Control Study. Nep J Radiology [Internet]. 2012 Oct. 23 [cited 2024 Nov. 23];2(1):25-30. Available from: https://nepjol.info/index.php/NJR/article/view/6976