Chen, Y.-C., H.-W. Chen, Y.-S. Juan, I.-S. Lo, M.-C. P. Shih, W.-J. Wu, J.-H. Jhan, and T.-Y. Huang. “Management of Large Proximal Ureteral Calculi: A Three-Year Multicenter Experience of Simultaneous Supine Percutaneous Nephrolithotomy and Retrograde Ureterolithotripsy”. Urology Journal, vol. 16, no. 5, Oct. 2019, pp. 433-8, doi:10.22037/uj.v16i5.4328.