AUTHOR=Duarte Flavia A. , Dienstmann Rodrigo , Diniz Paulo H. C. , e Silva Matheus C. , Veloso Gilson G. V. , Arcanjo Georgia S. , Paes Rafael , Montella Tatiane C. , Lima Helena F. C. A. , Ferrari Bruno L. , Macuzo Eliane V. , Ferreira Carlos G. TITLE=Brazilian real-world data of immunotherapy in extensive stage small cell lung cancer JOURNAL=Frontiers in Oncology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1425421 DOI=10.3389/fonc.2025.1425421 ISSN=2234-943X