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(a) Representative T1-weighted MRI images of a mouse obtained before (PRE) and after (1 and 5 h), the injection of Mn@HFn-RT. The arrows indicate the liver (L), (b) intensity of the bright signal quantified in the liver normalized against the brightness of the muscle ± SE. *P < 0.05 (Student’s t-test). (c) intensity of the bright signal quantified in the kidney normalized against the brightness of the muscle ± SE. *P < 0.05 (Student’s t-test).
