AUTHOR=Jiao Feng , Shang Zhanxian , Lu Hongmin , Chen Peilin , Chen Shiting , Xiao Jiayi , Zhang Fuchuang , Zhang Dadong , Lv Chunxin , Han Yuchen TITLE=A weakly supervised deep learning framework for automated PD-L1 expression analysis in lung cancer JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1540087 DOI=10.3389/fimmu.2025.1540087 ISSN=1664-3224