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Dynamic distribution in rat organs within the first 11.7 min post injection of99mTc-DTPA kit and99mTc-labeled MBs. Designated colors for organs: lungs (red), liver (yellow), bladder (turquoise), kidneys (maroon). (A) DTPA kit. (B) Plain MBs. (C) DTPA MBs. (D) Chitosan MBs. (E) PMAA MBs. (F) NOTA MBs.
