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. 2016 Aug 16;13(8):828. doi: 10.3390/ijerph13080828

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© 2016 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 (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Effects of (a) exhaled nicotine ratio; (b) number of puffs taken by each participant; (c) air exchange rate (ACH) on predicted indoor air nicotine concentration.