Dong, S.-W., Hu, S.-W., Liu, S.-P., Wu, C.-C., Lin, C.-T., Chen, K.-C., & Ho, C.-H. (2022). A Safe and Effective Two-Step Tract Dilation Technique in Totally Ultrasound-Guided Percutaneous Nephrolithotomy. Urology Journal, 19, 7205. https://doi.org/10.22037/uj.v19i.7205