Figure 3

(a) Photo micrograph showing immunonegativity for PD-L1 in Normal Oral Mucosa. (b) Photo micrograph showing immunonegativity for PD-1 in Normal Oral Mucosa.

(a) Photo micrograph showing immunonegativity for PD-L1 in Normal Oral Mucosa. (b) Photo micrograph showing immunonegativity for PD-1 in Normal Oral Mucosa.