Sahdev, R., A. Rao, N. Yadu, and Y. Shukla. “Utility of Color Doppler in Diagnosing Ureteric Calculi: A Useful Adjunct”. International Journal of Medical Research and Review, Vol. 4, no. 11, Nov. 2016, pp. 2015-8, https://ijmrr.medresearch.in/index.php/ijmrr/article/view/753.