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. 2014 Jul 9;56(1):39. doi: 10.1186/1751-0147-56-39

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Copyright © 2014 Ohlson 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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Seasonal variation. Levels of antibodies against Coxiella burnetii measured in bulk milk in 114-119 dairy herds on the Isle of Gotland, Sweden, on four sampling occasions, September 2010 to October 2011.