AUTHOR=Tang Jiaxiang , Guo Yun , Lu Hongting , Fang Yifan , Chen Weiming TITLE=Prognostic nomogram for overall survival in pediatric osteosarcoma with pulmonary metastases: a SEER database analysis JOURNAL=Frontiers in Pediatrics VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2025.1574034 DOI=10.3389/fped.2025.1574034 ISSN=2296-2360