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. 2021 Dec 6;13(1):93–104. doi: 10.1364/BOE.445597

Fig. 6.

Fig. 6.

(a) In vivo visual image, (b) THz wave total reflection image, (c) freezing visual image, and (d) H&E-stained image for NO. 5-7 samples, the blue areas were the edge between sample and background. The red, green and black areas of (b) were the tumor tissue, normal tissue and background regions, respectively.