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Figure 3: Intense staining of tumor cells to GFAP (a) and vimentin (b), and scattered positivity to TTF-1 (c) and Ki-67 (d) (40×)

Figure 3: Intense staining of tumor cells to GFAP (a) and vimentin (b), and scattered positivity to TTF-1 (c) and Ki-67 (d) (40×)