Fig. 3From: The immune microenvironment of HPV-positive and HPV-negative oropharyngeal squamous cell carcinoma: a multiparametric quantitative and spatial analysis unveils a rationale to target treatment-naïve tumors with immune checkpoint inhibitorsmIF staining of primary HPV-positive and HPV-negative OPSCC and relative lymph node metastasis. (A) Representative 9-color and (B) 6-color multispectral images at original magnification X20. Immune markers and color codes are indicated in the underlying legendBack to article page