AUTHOR=Yi Xinyu , Li Jin TITLE=Needle nephroscope combined with ureteroscope via a single standard percutaneous nephrolithotomy channel for the treatment of complex non-obstructing renal stones JOURNAL=Frontiers in Surgery VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2025.1573548 DOI=10.3389/fsurg.2025.1573548 ISSN=2296-875X