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. Author manuscript; available in PMC: 2020 Feb 12.
Published in final edited form as: Electronics (Basel). 2020 Jan 3;9(1):10.3390/electronics9010099. doi: 10.3390/electronics9010099
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/).