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. 2014 Jul 10;14(7):12370–12386. doi: 10.3390/s140712370

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© 2014 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 license (http://creativecommons.org/licenses/by/3.0/).

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Figure 12. — (a) Assembled electrode prototype for measuring contact impedance and ECG recording; (b) Assembled electrode prototype for EEG recordings.