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. 2019 Mar 1;12(5):719. doi: 10.3390/ma12050719

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Representative results of SEM and EDS analysis: (a) analysis on the top of screw, (b) analysis of the Mg particle embedded in PLA matrix, (c) transverse screw fracture after immersion in liquid nitrogen.