| ORR | objective response rate |
| CR | complete response |
| FMT | fecal microbiota transplantation |
| NSCLC | non-small cell lung cancer |
| PD-1 | programmed cell death protein 1 |
| PD-(L)1 | programmed death (ligand) 1 |
| GI | gastrointestinal |
| ICI | immune checkpoint inhibitor |
| CD8+ T cells | cytotoxic T lymphocytes |
| NLR | neutrophil-to-lymphocyte ratio |
| HLA | human leukocyte antigen |
| SNP | single nucleotide polymorphism |
| MMR | mismatch repair |
| SCFA | short-chain fatty acid |
| PPI | proton pump inhibitor |
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