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  Indian J Med Microbiol
 

Figure 1: Programmed death-ligand 1 immunostaining of head and neck squamous cell carcinoma. Representative staining of tumor cells (a and b) and inflammatory cells (c and d) is shown at ×20. The combined positive score of the cases were 100, 85, 80 and 27 respectively

Figure 1: Programmed death-ligand 1 immunostaining of head and neck squamous cell carcinoma. Representative staining of tumor cells (a and b) and inflammatory cells (c and d) is shown at ×20. The combined positive score of the cases were 100, 85, 80 and 27 respectively