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Long-term in situ imaging of GGT in mouse tumors. In vivo real-time imaging of GGT in A2780-bearing nude mice after tumor injection of 20 μM HYPQG (A), DCMG (B), Bcy-GGT (C), and Folate-PEG5000-CY 5.5 (D), respectively. The quantitative analysis was displayed in SI Appendix, Fig. S36A.
