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. 2021 Aug 5;60:709–733. doi: 10.1016/j.jmsy.2021.07.023

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© 2021 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.

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Fig. 1 — (a) The most prolific countries involved in the advancement of 3D printing research (b) Annual progress in the 3D printing global market in billion US dollars [11] (c) Estimated share of various types of additive manufacturing in the overall USA 3D printing market by 2027.