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. 2019 Aug 27;10:2036. doi: 10.3389/fimmu.2019.02036

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Copyright © 2019 Ahl, Eriksson, Sedin, Seignez, Schwan, Kreuger, Christoffersson and Phillipson.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Features of the electronic control unit. (A) Arduino Uno, (B) USB connection to computer, (C) 3.3 V power supply and MOSFET module, (D) vacuum window, (E) 4-wire cable, (F) circuit diagram.