Esfandiar, Nasrin, et al. “Incidence of Acute Kidney Injury Due to Contrast Usage in Patients Admitted to Mofid Children’s Hospital (2019-2020)”. Journal of Pediatric Nephrology, vol. 9, no. 2, Mar. 2021, pp. 1-6, doi:10.22037/jpn.v8i2.33082.