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. 2021 Feb 25;11:609743. doi: 10.3389/fonc.2021.609743

Figure 1.

Figure 1

Immunohistochemical analysis of nuclear YAP1 expression. Nuclear YAP1 expression was evaluated in high-power fields (400× magnification) by an experienced pathologist. The samples were classified as negative (A), 1+ (B), 2+ (C), and 3+ (D), based on the intensity of YAP1 nuclear staining.