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. 2014 Sep 10;11:39. doi: 10.1186/s12989-014-0039-3

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Copyright © 2014 Schaumann et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Total cells and absolute eosinophils in BAL in the sequence (A): 1^stPeriod: UFP – 2^ndPeriod: Filtered air and sequence (B): 1^stPeriod: Filtered air – 2^ndPeriod: UFP. Mean ± SD.