A weakly supervised deep learning framework for automated PD-L1 expression analysis in lung cancer - Jiao, Feng; Shang, Zhanxian; Lu, Hongmin; Chen, Peilin; Chen, Shiting; Xiao, Jiayi; Zhang, Fuchuang; Zhang, Dadong; Lv, Chunxin; Han, Yuchen (Frontiers in Immunology, 2025)