article_metadata: Qian Shen Jingjing Qu Lingyan Sheng Qiqi Gao Jianying Zhou
article_metadata: 10.3389/fonc.2021.619371
article_metadata: Front Oncol
article_metadata: 2021 May 21;11:619371.
article_metadata: pd-1 inhibitors lung squamous cell carcinomas resistant small-cell lung cancer transformation
article_metadata: CC BY
article_metadata: https://pubmed.ncbi.nlm.nih.gov/34094904/
article_metadata: Case Reports
article_metadata: PMC8176117
article_metadata: 34094904
article_metadata: Case Report: Transformation From Non-Small Cell Lung Cancer to Small Cell Lung Cancer During Anti-PD-1 Therapy: A Report of Two Cases
article_metadata: 2021