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Magnetic resonance angiography of head and neck in mice injected with MFt and Gd-DTPA: (a) After injecting MFt, MFt provided continuous contrast enhancements within 2 hours; (b) after Gd-DTPA administered, short term blood pool imaging was observed compared with MFt. Reprinted with permission from Ref 47 Copyright 2019 Royal Society of Chemistry.
