Tang, M., Q. Wang, B. Liu, J. Li, Q. Lu, N. Song, Z. Wang, and W. Zhang. “Single Ectopic Ureteral Orifice With Bilateral Duplicated Renal Collecting Systems in an Adult Girl: Diagnosis by Magnetic Resonance Urography”. Canadian Urological Association Journal, vol. 9, no. 7-8, Aug. 2015, pp. E554-8, doi:10.5489/cuaj.2886.