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Distribution of rhodamine-labeled GE11-TLs [PEG/GE11 (4:2)] and PLs [PEG/GE11 (4:0)] in the regions of tumor neovascularization of SMMC7721 xenografts after i.v. combined with iRGD for 1 h, at the dose of 16 mg/kg. Scale bar: 10 μm. Blue: nucleus; red: rhodamine-labeled GE11-TLs or PLs; white: stromal cell nucleus.
