AUTHOR=Jang Hye-Bin , Lee Dong Hoon , Lim Sang Chul TITLE=Factors affecting the occurrence of maxillary sinus fungus ball JOURNAL=Frontiers in Surgery VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2024.1491155 DOI=10.3389/fsurg.2024.1491155 ISSN=2296-875X