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. 2019 Sep 9;14:7353–7362. doi: 10.2147/IJN.S217974

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© 2019 Jie et al.

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(A) and (B) TEM images of Na_xWO₃ nanoparticles. (C) High-resolution TEM image of a Na_xWO₃ nanoparticle. (D) XRD pattern of Na_xWO₃ nanoparticles.

Abbreviations: TEM, transmission electron microscopy; XRD, X-ray diffraction.