EGFR and nonpapillary renal cell carcinoma: The expression of EGFR and PLXNB2 receptors were also validated at protein level by flow cytometry on freshly resected ccRCC tumors and juxtatumors (n = 9 tumors, n = 8 juxtatumors) in immune, malignant, endothelial, and stromal cell populations (Figures S5C and S5D).