Ali, Humaira, et al. “TRANSABDOMINAL ULTRASONOGRAPHY IN STAGING OF WILMS TUMOR: Transabdominal Ultrasonography in Wilms Tumor”. Pakistan Armed Forces Medical Journal, vol. 68, no. 2, Nov. 2018, pp. 339-44, https://www.pafmj.org/PAFMJ/article/view/1419.