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. 2009 Dec 28;10(1):176–202. doi: 10.3390/s100100176

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©2010 by the authors; licensee Molecular Diversity Preservation International, 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 21. — Laryngeal motion detector SFN-2 [63,64] incorporating a photo-reflective sensor. A: sensing surface of the detector. B: various sensors mounted on the anterior region of the neck.