Figure S1. Schematic representation of the peptides investigated in the study. Figure S2. RP-HPLC chromatograph of [68Ga]Ga-Ex4NOD (top) and [68Ga]Ga-Ex4DFO (bottom). Figure S3. Mass spectrometric analysis of [natGa]Ga-Ex4NOD. Figure S4. Mass spectrometric analysis of [natGa]Ga-Ex4DFO. (DOCX 812 kb