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A) Chemical structure of NOTA-Glu-[Gly-Gly-Gly-cyclo(RGDfK)]2. B) Coronal PET images of the U87MG tumor bearing mouse at 30, 60 and 120 min without and with blocking dose of cyclo(RGDyK) after injection of 68Ga-NOTA-Glu-[Gly-Gly-Gly-cyclo(RGDfK)]2. Modified with permission from ref. 37. Copyright 2009, Springer-Varlag.
