AUTHOR=Li Yuhong , Hua Rui , Dai Liling , Chen Wei , Zhang Junyuan , Wang Qian , Xu Yufeng , Wang Tingting TITLE=Analysis of the impact of rotation error on PTV margins in multiple brain metastases fractionated stereotactic radiotherapy based on single-isocenter multi-target technique JOURNAL=Frontiers in Oncology VOLUME=Volume 15 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1564126 DOI=10.3389/fonc.2025.1564126 ISSN=2234-943X