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. 2020 Mar 30;18(1):1559325820902314. doi: 10.1177/1559325820902314

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© The Author(s) 2020

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — A, Scanning electron microscopy images of Gd-MSN@uFe-Bt-NPs. B, High-resolution scanning electron microscopy image of Gd-MSN@uFe-Bt-NPs. C, Energy dispersive spectroscopy elemental maps for the elements C Kα, Gd Kα, Si Kα, O Kα, and Fe Kα. Scale bar is 50 nm.