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Author

Sarah Yousuf

1 paper indexed here

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Open access Sep 2026

Tumor-cell PD-L1 expression, mismatch repair status, and survival outcomes in colorectal carcinoma: a retrospective Pakistani cohort study

Background Tumor-cell programmed death-ligand 1 (PD-L1) expression has been investigated as a biomarker for colorectal carcinoma (CRC), but the reported positivity rates vary by antibody clone, scoring method, and threshold. Tumor-cell PD-L1 is not a validated companion diagnostic tool for CRC. We assessed whether PD-L...

Kanza Atif, Aiman Ajmeer, Abdal Ahmad et al. · 0 citations

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