article_metadata: Yanxin He Lunqing Wang Xiao Li Tongsong Zhang Tingting Song Junling Zhang Yangyang Yu Shiqing Chen Haiping Song
article_metadata: 10.3389/fonc.2021.596342
article_metadata: Front Oncol
article_metadata: 2021 May 25;11:596342.
article_metadata: proficient mismatch repair/microsatellite stability programmed death ligand-1 blockade programmed death ligand-1 expression rectosigmoid-junction squamous cell carcinoma tumor mutation burden
article_metadata: CC BY
article_metadata: https://pubmed.ncbi.nlm.nih.gov/34113555/
article_metadata: Case Reports
article_metadata: PMC8185331
article_metadata: 34113555
article_metadata: Rectosigmoid-Junction Squamous Cell Carcinoma With pMMR/MSS Achieved a Partial Response Following PD-1 Blockade Combined With Chemotherapy: A Case Report
article_metadata: 2021