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. 2016 Apr 26;26(6):392–416. doi: 10.3109/15376516.2016.1170251

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© 2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial NoDerivatives License (http://creativecommons.org/Licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.

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Figure 14. — Particle size distribution of the aerosols and depositions in the Vitrocell base module. A, The droplet size distribution of the aerosol generated using the Collison nebulizer (N = 3). Error bars indicate the standard error of the mean. B, Concentrations of PG, G, and Nic in the PBS-filled inserts placed in the Vitrocell base module after exposure to the test aerosols for 30, 60, 90, or 180 min (upper panels). The proportion of PG, G, and Nic in the PBS-filled inserts after they were exposed to the test aerosols for the various exposure durations (lower panel). Abbreviations: G: glycerol; Nic: nicotine; PG: propylene glycol.