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Results of the enhanced signals in different tissues in vivo. (A) Gadolinium-diethylene triamine pentaacetate (Gd-DTPA), (B) anti-epidermal growth factor receptor (EGFR)-DTPA-Gd, and (C) anti-EGFR-internalizing arginine-glycine-aspartic acid (iRGD)-DTPA-Gd.
