DONG, S.-W.; HU, S.-W.; LIU, S.-P.; WU, C.-C.; LIN, C.-T.; CHEN, K.-C.; HO, C.-H. A Safe and Effective Two-Step Tract Dilation Technique in Totally Ultrasound-Guided Percutaneous Nephrolithotomy. Urology Journal, v. 19, p. 7205, 30 Jul. 2022.