Trend analysis of pediatric urolithiasis prevalence from 1990 to 2021 in the BRICS - Zhang, Zhi-gang; Lin, Qing-cheng; Zhou, Qing-ying; Xu, Nai-fen; Zheng, Ding-qin; Pan, Qi-zhuang; Wang, Xin-jun; Xu, Ran (Frontiers in Pediatrics, 2025)