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Intratumoral heterogeneity of programmed cell death ligand-1 expression is common in lung cancer

Fig 7

Representative images of PD-L1 expression in a case with heterogeneous PD-L1 expression.

(A) The whole section (magnification, 3×), (B) the corresponding Spiral Array core (magnification, 15×), (C) magnified images from the regions delineated by the dotted lines in A (left) and B (right) (magnification, 200×), and (D) magnified images from the regions delineated by the solid lines in A (left) and B (right) (magnification, 200×). Images of the other 5 cases are shown in S1 Fig.

Fig 7

doi: https://doi.org/10.1371/journal.pone.0186192.g007