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Macroscopic reflectance fluorescent imaging of 9L-GFP gliosarcoma in mouse ear model. (A) Visible light image. (B) Expression of tumor GFP marker protein in tumors. (C) NIRF image demonstrating PGC-Cy5.5 probe cleavage. A total of three individual nodules are visible. Cy5.5 dequenching was observed in two larger tumors.
