AUTHOR=Zhang Zhi-gang , Lin Qing-cheng , Zhou Qing-ying , Xu Nai-fen , Zheng Ding-qin , Pan Qi-zhuang , Wang Xin-jun , Xu Ran TITLE=Trend analysis of pediatric urolithiasis prevalence from 1990 to 2021 in the BRICS JOURNAL=Frontiers in Pediatrics VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2025.1551046 DOI=10.3389/fped.2025.1551046 ISSN=2296-2360