CD8A and non-small cell lung carcinoma: In a study by Ilie et al. from 2012, the prognostic relevance of the intratumoral cluster of differentiation 66b (carcinoembryonic antigen-related cell adhesion molecule 8 (CD66b))-positive neutrophils and of the intratumoral CD66b-positive neutrophil-to-cluster of differentiation 8 (cell surface antigen T8 (CD8))-positive lymphocytes (the CD66b-positive neutrophil-to-CD8-positive lymphocyte ratio (iNTR)) was evaluated in patients with NSCLC [30].