Sood A, Ghani KR, Hemal AK. Reply to Yuqi Xia, Weimin Yu, and Fan Cheng's Letter to the Editor re: Ryan Swearingen, Akshay Sood, Rabii Madi, et al. Zero-fragment Nephrolithotomy: A Multi-center Evaluation of Robotic Pyelolithotomy and Nephrolithotomy for Treating Renal Stones. Eur Urol 2017;72:1014-21. Eur Urol. 2018 09; 74(3):e77-e78.