Fig. 4From: Pre-clinical evaluation of eight DOTA coupled gastrin-releasing peptide receptor (GRP-R) ligands for in vivo targeting of receptor-expressing tumorsTumor-to-background (T/B) ratios in mice with PC-3 xenografts injected with different radiolabeled bombesin derivatives. a BN1. b BN4. c BN7. d BN8. The BN8 derivative shows the highest ratios among the compounds testedBack to article page