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\bibitem{Roose_etal2014} {\textquotedblleft}\textit{Multimodal imaging of micron-sized iron oxide particles following in vitro and in vivo uptake by stem cells: down to the nanometer scale}{\textquotedblright}. Roose D, Leroux F, de Vocht N, Guglielmetti C, Pintelon I, Adriaensen D, Ponsaerts P, van der Linden A-M, Bals S, Contrast media and molecular imaging \textbf{9}, 400 (2014).   http://doi.org/10.1002/cmmi.1589

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