AUTHOR=Duan Yubei , Zhuo Huifang TITLE=Primary osteosarcoma of the breast during lactation: a case report and literature review JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2024 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1362024 DOI=10.3389/fonc.2024.1362024 ISSN=2234-943X