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Table 1 Immunohistochemical analysis of tumor specimens

From: A robust response to combination immune checkpoint inhibitor therapy in HPV-related small cell cancer: a case report

  PD-L1 CD4/HPF CD8/HPF FOXP3/HPF CD8/FOXP3 CD8/CD4
Neck primary (pre-treatment) 20% 75 111 31 3.58 1.48
Metastatic brain (post-treatment) 10% 53 69 9 7.67 1.3
  1. HPF high-power field; immunohistochemistry methods described in Additional file 1