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Application of Fluorine labeled UCNPs as multimodal probes (A) Biodistribution of at different post-injection times; (B) Whole-body two-dimensional projection, and (C) transversal, (D) coronal, and (E) sagittal images of the liver (L) and spleen (S) of an in vivo injected mouse ([125], reproduced by permission of Elsevier).
